Under MARPOL Code the ship to which it applies has to carry （）

The condensers located in various stages of a flash evaporator are cooled by（）

The main purpose of port State control is not to（）

The shipboard oil pollution emergency plan will be invalid after （）

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）

If separating effect is not good, which measure should be taken （）

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）

During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.

Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）

（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.