问题
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_____uses one or two high pressure pumps for all the cylinders with one more____ standby, while______have a separate high-pressure pump for each cylinder.
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The air reservoirs must have _____ fitted to prevent rupture in the event of fire.A.high p
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One end of a cylinder for a medium or high-speed diesel engine is sealed by the piston and
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Please choose a correct name for “消防泵”.A.fire maskB.fire proof lineC.fire pump
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The author suggests that its satisfactory enough for one to getA.a high school diploma.B.a
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In relation to remedies for breach of contract, explain:(a) the difference between liquida