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1.The series SMC connectors with screw ?coupling mechanism ,have character of small size light weight ,reliable connect and vibration-proof ,for the connect RF coaxial-cable in electronic equipment and instruments ,and can be interchangeable with the same ?type connectors of abroad.
该系列产品具有体积小、重量轻、连接可靠、抗振性能好等特点，供无线电设备和仪器中连接射频同轴电缆用。收藏指正
2.Screw stem coupling (B) on stem until travel setting T is reached.
旋转阀杆上的阀杆联轴器(B)的螺纹直到形成设置点T为止。收藏指正
3.Tighten the N coupling nut on the ball screw side.
拧紧丝杆边的N型连接螺母.收藏指正
4.Problems in using screw-crane in fields and water resources engineering were analysed with examples of engineering project.Based on this,a method was presented.By using double-hook screw-crane and connecting two screw-cranes by an intermediate bearing and a gear coupling,the problem of inefficiency in door-closing was solved.The double-hook screw-crane could work synchronously.
以具体工程为例，在分析了螺杆启闭机在农田水利工程中应用时存在的问题及原因的基础上，提出采用双吊点螺杆启闭机，用中间轴与齿轮联轴器把2台螺杆启闭机连接起来的方法，成功地解决了单吊点启闭机闭门力不足的问题，实现了双吊点螺杆启闭机工作时的同步.收藏指正
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