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输气管加上内壁涂层,既可减少内腐蚀也大大降低了粗糙度,在同样条件下使输气管输气量增加5~8%,有的甚至高达10%。The inner wall coating on the pipe can reduce the internal corrosion and roughness. Under the same condition, the gas volume of the pipe can be increased by 5~8%, some even as high as 10%.
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管线输量增加;内腐蚀减少
更多 “输气管加上内壁涂层,既可减少内腐蚀也大大降低了粗糙度,在同样条件下使输气管输气量增加5~8%,有的甚至高达10%。The inner wall coating on the pipe can reduce the internal corrosion and roughness. Under the same condition, the gas volume of the pipe can be increased by 5~8%, some even as high as 10%.” 相关考题
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Can Loud Music Cause Hearing Impairment(损伤)?Have you ever gone to a concert and realized that your seats were right next to thebooming speakers?Are you guilty_________(1)turning up the volume on your portablecassette or CD player to drown out the whining(哭哭啼啼)of your little brother? Sometimes it's difficult to avoid loud music or noises,but they can be bad news because loud noises can_________(2)temporary or permanent hearing loss.Extremely loud music and noises that go on for long periods of_______(3)are common causes of deafness.If a noise is so loud that you have to shout to make yourself_______(4),there is a______(5)that the mechanism inside your ear can beinjured.Temporary hearing loss can happen after you've been_______(6)to loud noise for only 15 minutes.If you have temporary hearing loss,you won't be able to hear as________ (7) as you normally can, and you may have tinnitus(耳鸣),which is afancy word for ringing in the ears. Your ears can feel"full",too._________(8),these things usually go away and your hearing soon returns to normal.Permanent hearing loss can happen when someone is exposed to loud noise ________(9)and over. Construction workers and people who work in factories must ________(10)ear protectors because the equipment they use can be extremely loud. But even some lawn mowers(割草机)and power tools can permanently__________ (11)a person's ability to hear high-pitched noises and can also give him permanent tinnitus. Listening to extremely loud music over and over can also have the same effect on a person's ______(12).And using headphones on a portable cassette or CD player can be dangerous________(13)if the volume is too high and the headphones are used a lot, the noise can damage the ears.The best way to avoid hearing loss is to wear ear protectors when working with machinery and earplugs when going to a_________(14).Headphones are OK to wear when you're listening to music;just be sure the volume isn't too high,and give them a rest________(15)once in a while._________(8.)A: Unfortunately B: Accordingly C: Luckily D: Unexpectedly
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Can Loud Music Cause Hearing Impairment(损伤)?Have you ever gone to a concert and realized that your seats were right next to thebooming speakers?Are you guilty_________(1)turning up the volume on your portablecassette or CD player to drown out the whining(哭哭啼啼)of your little brother? Sometimes it's difficult to avoid loud music or noises,but they can be bad news because loud noises can_________(2)temporary or permanent hearing loss.Extremely loud music and noises that go on for long periods of_______(3)are common causes of deafness.If a noise is so loud that you have to shout to make yourself_______(4),there is a______(5)that the mechanism inside your ear can beinjured.Temporary hearing loss can happen after you've been_______(6)to loud noise for only 15 minutes.If you have temporary hearing loss,you won't be able to hear as________ (7) as you normally can, and you may have tinnitus(耳鸣),which is afancy word for ringing in the ears. Your ears can feel"full",too._________(8),these things usually go away and your hearing soon returns to normal.Permanent hearing loss can happen when someone is exposed to loud noise ________(9)and over. Construction workers and people who work in factories must ________(10)ear protectors because the equipment they use can be extremely loud. But even some lawn mowers(割草机)and power tools can permanently__________ (11)a person's ability to hear high-pitched noises and can also give him permanent tinnitus. Listening to extremely loud music over and over can also have the same effect on a person's ______(12).And using headphones on a portable cassette or CD player can be dangerous________(13)if the volume is too high and the headphones are used a lot, the noise can damage the ears.The best way to avoid hearing loss is to wear ear protectors when working with machinery and earplugs when going to a_________(14).Headphones are OK to wear when you're listening to music;just be sure the volume isn't too high,and give them a rest________(15)once in a while._________(1)A:of B:for C:at D: on
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共用题干
Can Loud Music Cause Hearing Impairment(损伤)?Have you ever gone to a concert and realized that your seats were right next to thebooming speakers?Are you guilty_________(1)turning up the volume on your portablecassette or CD player to drown out the whining(哭哭啼啼)of your little brother? Sometimes it's difficult to avoid loud music or noises,but they can be bad news because loud noises can_________(2)temporary or permanent hearing loss.Extremely loud music and noises that go on for long periods of_______(3)are common causes of deafness.If a noise is so loud that you have to shout to make yourself_______(4),there is a______(5)that the mechanism inside your ear can beinjured.Temporary hearing loss can happen after you've been_______(6)to loud noise for only 15 minutes.If you have temporary hearing loss,you won't be able to hear as________ (7) as you normally can, and you may have tinnitus(耳鸣),which is afancy word for ringing in the ears. Your ears can feel"full",too._________(8),these things usually go away and your hearing soon returns to normal.Permanent hearing loss can happen when someone is exposed to loud noise ________(9)and over. Construction workers and people who work in factories must ________(10)ear protectors because the equipment they use can be extremely loud. But even some lawn mowers(割草机)and power tools can permanently__________ (11)a person's ability to hear high-pitched noises and can also give him permanent tinnitus. Listening to extremely loud music over and over can also have the same effect on a person's ______(12).And using headphones on a portable cassette or CD player can be dangerous________(13)if the volume is too high and the headphones are used a lot, the noise can damage the ears.The best way to avoid hearing loss is to wear ear protectors when working with machinery and earplugs when going to a_________(14).Headphones are OK to wear when you're listening to music;just be sure the volume isn't too high,and give them a rest________(15)once in a while._________(10)A:hear B:bear C: wear D: tear
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共用题干
Can Loud Music Cause Hearing Impairment(损伤)?Have you ever gone to a concert and realized that your seats were right next to thebooming speakers?Are you guilty_________(1)turning up the volume on your portablecassette or CD player to drown out the whining(哭哭啼啼)of your little brother? Sometimes it's difficult to avoid loud music or noises,but they can be bad news because loud noises can_________(2)temporary or permanent hearing loss.Extremely loud music and noises that go on for long periods of_______(3)are common causes of deafness.If a noise is so loud that you have to shout to make yourself_______(4),there is a______(5)that the mechanism inside your ear can beinjured.Temporary hearing loss can happen after you've been_______(6)to loud noise for only 15 minutes.If you have temporary hearing loss,you won't be able to hear as________ (7) as you normally can, and you may have tinnitus(耳鸣),which is afancy word for ringing in the ears. Your ears can feel"full",too._________(8),these things usually go away and your hearing soon returns to normal.Permanent hearing loss can happen when someone is exposed to loud noise ________(9)and over. Construction workers and people who work in factories must ________(10)ear protectors because the equipment they use can be extremely loud. But even some lawn mowers(割草机)and power tools can permanently__________ (11)a person's ability to hear high-pitched noises and can also give him permanent tinnitus. Listening to extremely loud music over and over can also have the same effect on a person's ______(12).And using headphones on a portable cassette or CD player can be dangerous________(13)if the volume is too high and the headphones are used a lot, the noise can damage the ears.The best way to avoid hearing loss is to wear ear protectors when working with machinery and earplugs when going to a_________(14).Headphones are OK to wear when you're listening to music;just be sure the volume isn't too high,and give them a rest________(15)once in a while._________(5) A: luck B: point C:chance D:sense
考题
Which of the following AIX storage concepts is correct?()A、A filesystem can span multiple physical volumes.B、A physical volume can belong to more than 1 volume group.C、A logical volume can have up to 2 copies in each of 2 volume groups.D、The size of a filesystem is always the same size as its logical volume.
考题
单选题Which of the following AIX storage concepts is correct?()A
A filesystem can span multiple physical volumes.B
A physical volume can belong to more than 1 volume group.C
A logical volume can have up to 2 copies in each of 2 volume groups.D
The size of a filesystem is always the same size as its logical volume.
考题
单选题A water pump can not supply water after startingIt may be caused by ().A
closed discharge valveB
broken pipe lineC
worn shaftD
both A and B
考题
单选题Care must be taken to condition the ()in the boiler to prevent scaling, and corrosion, which can weaken the pressure vessel.A
waterB
fuelC
steamD
air
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多选题Which two statements are true about the WebLogic Cluster ?()AClustered Servers capacity can be increased by adding new server instance to the cluster on an existing machineBClustered Servers can be on a same or different machine with same operating system onlyCClustered Servers can only be on a same machine or different operating systemDClustered Servers can be on a same or different machine with same or different operating system
考题
问答题The good news is that even slight alterations, such as planting more trees in the inner city or creating urban parks with a greater variety of plants, can significantly reduce the negative side effects of city life.
考题
单选题The efficiency of a flash type evaporator can be increased by()A
lowering brine discharge densityB
decreasing the absolute pressure of each stageC
increasing the saltwater feed heater temperatureD
increasing the pressure at the spray pipe
考题
单选题After stopping oily water separator, sea water should be permitted for () minutes,()should be closed after stopping pump to reduce oxidation corrosion of inner wall.A
15;inlet valueB
15;inlet and outlet valueC
30;inlet valueD
30;inlet and outlet value
考题
单选题In engines with system, the lubricating oil can be added to the engine through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe()A
lubricating oilB
dry sumpC
circulated tankD
wet sump
考题
单选题What is a spill pipe?()A
A drainage pipe that carries rain or spray from an upper deck to a lower deckB
A pipe under the anchor windlass leading to the chain lockerC
A chute,usually over the stern,to lead dumped garbage clear of the hullD
An opening in the deck leading outside the hull
考题
单选题The Shipowner’s right of the lien can()against all goods consigned to the same person on the same voyage,even under different bills of lading,but not against goods on different voyages under different contracts.A
takenB
be exercisedC
be doneD
be had
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