我
- A.ice
- B.wooden board
- C.iron plate
- D.cotton waste
- A.expand
- B.evaporate
- C.condense
- D.distil
- A.Piston pump
- B.Screw pump
- C.Diffuser pump
- D.Water-ring pump
- A.a dirty lube oil strainer
- B.internal water leaks
- C.an oil suction line restriction
- D.excessive wears of the cooling water pump
- A.excessive lube oil pressure
- B.the proper seating of new rings
- C.a worn cylinder liner
- D.a malfunctioning cylinder relief valve
- A.AC voltage to the armature
- B.AC voltage to the field
- C.DC voltage to the armature
- D.DC voltage to the field
- A.0°F
- B.18 °F
- C.32 °F
- D.50 °F
- A.Sea water is heated to boiling temperature while under a vacuum
- B.Sea water is passed over heated plates in a thin film
- C.Heated sea water is injected into a vacuum chamber
- D.Sea water is forced through a heated eductor
- A.A cut-off lever
- B.A swivel block
- C.A cross-head
- D.A driving gear
- A.the more
- B.the higher
- C.the lower
- D.the highest
