问题
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The size of the exhaust valve opening is __________________.
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The opening or closing of the cylinder starting valve is controlled by _____.
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The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engin
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A built-up exhaust valve is one in which ______.A.the stem and heads are made of different
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Which of the listed design features is found in an exhaust valve and NOT in an intake valv
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The satisfactory operation of diesel engine exhaust valves usually depends on ____.A.the p