A （）is the foundation of the engine， without the support of which the shaft alignment in particular， and engine structure as a whole， would inevitably be lost.
举一反三
- Bedplates are the （） of the engine， without the support of which the shaft alignment in particular， and engine structure as a whole， would inevitably be lost.
- One of the differences between a two-stroke engine and a four-stroke engine is,（） A: a two-stroke engine works without exhaust operation B: a two-stroke engine works without compression stroke C: a two-stroke engine works without expansion stroke D: a two-stroke engine works without suction operatio
- What serves as a rigid metal foundation for all parts of an engine?<br/>() A: The engine block B: camshaft C: clutch D: crankshaft
- As a heat engine，（） energy is the source of power by which the diesel engine can be operated.
- When the engine would not start, the mec...ind what was at ___.