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Hold the final position for one minute.
在最后一个姿势上保持一分钟。
youdao
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Concrete shall be deposited by carefully placing concrete in its final position by means of tremie.
用漏斗管仔细地将混凝土浇注到它的最终位置。
youdao
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Concrete shall be deposited by carefully placing concrete in its final position by means of tremie.
用漏斗管仔细地将混凝土浇注到它的最终位置。
youdao