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燃油锅炉和废气锅炉的联系方法中不包括_________。
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柴油机吊缸时对活塞环进行检查和测量的项目有()。Ⅰ.径向厚度(磨损)测量Ⅱ.搭口间隙测量Ⅲ.天地间隙测量Ⅳ.环背隙测量Ⅴ.环弹力检查Ⅵ.表面损伤检查
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把仪表的最大绝对误差与仪表的测量范围之比的百分数称之为______。
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当活塞采用浮动式活塞销时,相应地()。
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The amount of fluid delivered by a positive displacement pump can be regulated by _____.
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If a reciprocating air compressor has a knock occurring in frequency with its operating RPM, the cause is probably _____.