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()物料代号表示甲醇。
- A、ME
- B、MEG
- C、HME
- D、DEW
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考题
下列对管线编号80A-WCR-6004-A1-IH40描述错误的是()。A、80A表示管线尺寸为80mmB、WCR表示表示物料代号冷却水回水。C、6004表示管道代号D、IH40表示管线尺寸为40mm。
考题
单选题Hygroscopic cargoes should be ventilated when().A
going from a warm to a coldB
the dew point of the outside air is greater than the dew point of the air in the holdC
the dew point of the air in the hold is very lowD
the outside dew point is 16°C and the cargo temperature is 12°C
考题
单选题Hygroscopic cargoes should be ventilated when().A
going from a warm to a cold climateB
the dew point of the outside air is greater than the dew point of the air in the holdC
the dew point of the air in the hold is very lowD
the outside dew point is 16℃ and the cargo temperature is 12℃
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