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screw retention 螺钉固定
Retention gear pump, motor and foot screws, screw the force should be uniform, reliable connection.
紧固齿轮泵、电动机的地脚螺钉时，螺钉受力应均匀，连接可靠。
Results show that the reactive speed of catalysed system can meet the retention time of reactive extrusion based on twin-screw extruder.
结果表明，催化体系的聚合反应速度完全满足双螺杆挤出机反应挤出停留时间的要求。
Objective To study the effects of expansion fashion and expansion quantity on retention of cement_expanded composition screw post (CECSP).
目的研究膨胀方式和膨胀量对粘固膨胀复合型螺纹桩固位力的影响。
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