问题描述：
[单选]
The crankshaft of diesel engine is supported by（）．
A．tension stretch
B．tie rods
C．through bolts
D．main bearing
参考答案：查看无
答案解析：无
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答案解析：无
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上一篇：The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating（）．
下一篇：The crankshaft is of the semi built type， with the journal（）the forged or cast steel crank throws．
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