《曾根崎心中》属于（）。 市井剧。 历史剧。 舞蹈剧。 时代物。
The main moving parts of a diesel engine consist of the （） and the pistons. bedplate, connecting rods。 crankshaft, the connecting rods。 frames, crossheads。 crankshaft, the cylinder。
When the Pilot is embarked he or she （）. relieves the Master of his duties。 is solely responsible for the safe navigation of the vessel。 is a specialist hired for his or her local navigational knowledge。 relieves the officer of the watch。
简述焦炉操作管理的要点有哪些？
The main function of the lubrication system in to enable （） of a film of oil between the moving parts. the information。 the formation。 the scatter。 the frictio。
在救生艇筏上漂浮待救人员，防止低温效应的有效方法之一是（）。
