The successful operation of any engine or machine and （） depend on effective lubrication.

It is abnormal that when the engine is being turned by the turning gear or by hand, （）.

Charging is the filling of the engine cylinder with a supply or charge of fresh air （） compression.

The important thing is that this is a major breakthrough. “breakthrough” here means an important development or achievement.

Since the burning or combustion takes place within the engine itself, the engine is known as （）.

The purpose of the skirt or trunk in four-stroke cycle engines is to act in a similar manner to a （）.

The purpose of treating the cooling water of the diesel engine is to______. I、 resist the scale formation in the cooling chamber II、lubricate the engine part II III、increase thermal capacity IV、 resist corrosion

The purpose of treating the cooling water of the diesel engine is to____. I、 resist the scale formation in the cooling chamber II、 lubricate the engine part III、 increase thermal capacity IV、 resist corrosion

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

The central purpose of management is （） every action or decision help achieve a carefully chosen goal.

Cooling of engine is achieved by circulation a cooling liquid around internal passages within the （）.

The cooling of the piston is carried out by circulating （） across the underside of the crown and inside the ring belt or through specially shaped passages.