column bracket structure
... column bottoms pump ==> 塔底泵 column bracket structure ==> 柱架式结构 column crane ==> 柱式起重机 ...
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井下工具试验台架主机采用四柱框架式结构,工作平稳、安全可靠;
The test stand adopts four-pole framework structure which ensures smooth and reliable operation.
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