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2013-05-23 12:21
求翻译:Document FR 2 663 399 describes wedging means to raise a valve box consisting of an O-ring made from a synthetic material mounted on the cylindrical tubular portion of the collar while clamping the latter with the possibility of rolling on said tubular portion to adjust its vertical position and a groove formed in the 是什么意思? 待解决
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- 离问题结束还有
Document FR 2 663 399 describes wedging means to raise a valve box consisting of an O-ring made from a synthetic material mounted on the cylindrical tubular portion of the collar while clamping the latter with the possibility of rolling on said tubular portion to adjust its vertical position and a groove formed in the
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