The mechanical efficiency of an engine （） because losses occur in the form of friction.
举一反三
- Energy losses ____ friction occur in every machine. A: become to B: due to C: in view of D: owe to
- It is a verified fact that the higher ____<br/>of a two-stroke engine, the higher _____. A: the engine efficiency…the<br/>stroke/bore ratio B: the stroke/bore ratio…the<br/>engine efficiency C: the bore / stroke ratio…the<br/>engine efficiency D: the engine efficiency…the<br/>bore / stroke ratio
- Friction， engine wear and oil consumption in a diesel engine are directly related to the （）.
- It is the losses caused by friction that we must try to overcome by various means.
- The more the friction of an engine ,the more power It can develop.