...ae) 超高压阀门，启闭力小、上装式球阀(top entry trunnion mounted ball)蝶阀(butterfly)：调节阀、双偏心蝶阀(double-offset：锥面密封(plug)，调节性能好，沿阀座密封面做升降运动的阀门流阻小,lift-check)蝶式止回阀(butterfly check; e) 高温阀、角式截止...
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Double Offset Ring Spanner 梅花扳手 ; 梅花板手 ; 梅花双头扳手
Double offset chamfer 双边偏置倒角
double offset screwdriver 双弯头螺钉旋具
Double offset 双支距
Double-offset joints 双偏置式万向节
double offset butterfly valve 双偏心蝶阀
double offset expansion U-bend 双效U形补偿器
The characteristic of quick-return of offset double crank slider mechanism was analyzed in this paper. The synthesis method and curve of this mechanism with minimum transmission angle were presented.
本文分析偏置双曲柄滑块机构的急回运动特性，给出了按最小传动角设计偏置双曲柄滑块机构的设计方法和设计曲线。
The traditional readout circuit is improved by offset compensation based on double sampling technique.
通过对普通列读出电路进行改进，在双采样电路基础上，增加了失调电压补偿过程。
The operation principle of contant velocity universal joint with double offset ball basket is introduced.
介绍双偏置式球笼等速万向节的工作原理。
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