If a large difference exists between the compressor discharge pressure and the pressure corresponding to the existing condensing temperature in a refrigeration system, you should（）.
1、The difference between the starboard a
The difference between the starboard and port drafts caused by shifting a weight transversely is（）.AlistBheelCtrimDflotatio
2、The difference between a class A and a
The difference between a class A and a class B EPIRB is that the class A EPIRB（）.Aoperates on both military and civilian aircraft distress ...
3、Large pipes or （） are fitted between t
Large pipes or （） are fitted between the steam and water drums to ensure good natural circulation of water.Afire-tubesBfurnacesCdown-comersDsoot-blower
4、One of the differences between a two-s
One of the differences between a two-stroke engine and a four-stroke engine is,（）Aa two-stroke engine can’t work without cylindersBa two-s...
5、A wind has caused a difference between
A wind has caused a difference between drafts starboard and port. This difference is（）.AlistBheelCtrimDflotatio
6、The difference between international a
The difference between international and national Navtex Service is limited to（）.Afrequency allocatedBboth language and frequencyClanguage usedDtransmission power and time