问题
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The crankshafts of medium speed engines are almost invariably solid _____ from a single piece of steel.
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The bearings used to support the crankshaft are generally called _____.A.line shaft bearin
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An increase in load on a diesel engine results in _____ of speed of the crankshaft.A.a red
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Small crack in the crankshaft bearing surface of a diesel engine are an indication of____.
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Main bearings are required to support the crankshaft at each _____.A.endB.webC.pinD.journa
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_________(47)A.In many places especially outside