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All pumps for air and gases have movable needle pin, and relief valve with relief button, whereby needle pin is movable by means of screw thread rotation
All pumps for air and gases have movable needle pin, and relief valve with relief button, whereby needle pin is movable by means of screw thread rotation
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机译:所有的空气和气体泵都有可移动的针形针和带安全按钮的安全阀,针形针可通过螺纹旋转来移动
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摘要
All pumps for air and gases have a movable needle pin (2), and a relief valve with a relief button. The needle pin is movable by means of a screw thread rotation (5).
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