Some sea water came into the wheel house during the voyage due to()the window thereof.
- Anot close
- Bnot closing
- Cwe didn't close
- Dnot to be closed
Some sea water came into the wheel house during the voyage due to()the window thereof.
1、3. When I came into the room,he preten
3. When I came into the room,he pretended ________ his homework.A to doB be doingC doingD to be doing
2、When distilling sea water the cooling
When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water ().Ato decrease scale formationBfor better cooling effectCfor more economical purposeDto raise vacuum
3、An electric heater built into some sma
An electric heater built into some smaller diesel engines is used to ().Araise lube oil viscosity for easier starting in cold weatherBincrease...
4、No discharge into the sea shall contai
No discharge into the sea shall contain()in quantities or concentrations which are hazardous to the marine environment or chemicals or other s...
5、The teacher came into the room, with h
The teacher came into the room, with his hands _______behind his back.A being crossedB having crossedC crossedD to be crossed
6、Some of the energy fed into the pump w
Some of the energy fed into the pump will be dissipated as () due to mechanical inefficiencies, the remainder will be converted into pressure rise and fluid velocity.Ahydraulic headBstatic headCheat energyDsteam