Propulsion of the vast majority of contemporary merchant ships （especially containerships

The construction of the main propulsion engine lube oil sump should .A.have no plating joi

The opening of an exhaust valve on a modem, large, low－speed, main propulsion diesel engin

Propulsion engines and the vast majority of auxiliary generator engines are designed to al

（Few) schools （take advantages of) the vast classroom （of) the outdoors to teach the thing

Bean is ___ in the northeastern part of China.A、to grow vastlyB、vast grownC、vastly grown

At the moment there are vast numbers of things a computer cannot do.（)