装置在工作台上，用以夹稳加工工件，为钳工车间必备工具。
It is installed on the work stations to clamp the workpieces. It is an necessary tool in the schlosserei.
该公司机厂车间内焊工手持防护罩点焊，钳工戴着手套击打，钻工戴着平镜挖凿，气割工戴着墨镜切割。
Factory workshop of the company holding the shield spot welders, fitters gloves hitting, drilling workers dig wearing flat mirror, wearing sunglasses cutting gas cutting work.
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