... column drill 柱状岩取心钻 column effective length 柱的有效长度 column footing 柱基础 ...
基于150个网页-相关网页
effective length of column
... effective length of bolt ==> 螺栓计算长度 effective length of column ==> 柱的有效长度 effective length of delivery ==> 有效输出长度 ...
基于8个网页-相关网页
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column effective length
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column effective length
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