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- Halving drill pressure and doubling rotation speed can not reduce the performance load between friction pairs. 轴承系统的径向间隙越小，相应的峰值接触压力越低；
- Double rotation inverted pendulum 旋转二级倒立摆
- Adopt sliding thread take-up,importedvertical double rotating hookand forming two lines of lockstitch. 采用滑杆挑线，进口立式两倍旋梭勾线，形成两行平行锁式线迹。
- CQT Quartz co,ltd ‘s main products are at double rotated quartz blanks . it services for Military and communication industries at it's best . 目前其双转角石英晶片产品已进入国际著名的军事和通信企业。
- We have unique calculating and measure method to design the double rotate angles based on physics principle .It's approved to be very usefully after 3 years experiences. 双转角切型：我们已有三年以上的双转角晶片生产经验，有坚实的物理学基础，并有一套独特的角度计算和测量方法。
- Discussion on Cylinder Drive of Double Rotation Refrigerant Compressor 缸驱转型双回转制冷压缩机的探讨
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- The soldiers came at the double. 士兵们是急行军来的。
- A couch performs a double service. 躺椅有双重的服务。
- Look, double yellow lines you mustn't park here. 喂，这是双黄线--不能在这儿停车。
- Please double up the chair and put it aside. 请把椅子折起来放在一边。
