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单选题
According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and ().
A
the pulse-phase system
B
the pulse Doppler system
C
the pulse system
D
the pulse interval
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单选题In a diesel engine exhaust system, the cooling of the exhaust gases below their dew point, will result in ()A
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both (1) and (2)D
neither (1) nor (2)
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单选题In the () pressure charging system the pulse of energy that occur as the exhaust is released from the cylinder to improve the output of the turbocharger.A
constantB
pulseC
highD
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