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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Many “short sleepers” are likely to hold the view that ().A. sleep is a withdrawal from t
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The interior of some diesel engine saltwater heat exchangers are protected from corrosion
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The following engine parts are found damaged and we are about to ______ compensation from
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Oil control rings used in two-stroke/cycle diesel engines are located near the bottom of t
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Some diesel engines are fitted with a thermometer in the cooling water outlet from each cy