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可取下冰袋的时机是指当体温降至
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影响柴油机着火落后期的主要因素有（）、（）、（）和（）。
高压喷射用等容式出油阀可以满足柴油机在各种工况下的工作要求。
中国北方地区柴油车冬季可以用0号柴油。
[音频]We cannot travel every path. Success must be won along one line. We must make our business the one life purpose to which every other must be ___________. I hate a thing done by halves. If it be right, do it boldly. If it be wrong, leave it undone. The men of history were not perpetually looking into the mirror to make sure of their own size. _________ in their work they did it.
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