您要查找的是不是：
- Stationary anode, double focus, and bridge silicon rectification, The X-ray generator is an oil-immersed self-cooled unit. 固定阳极,双焦点,桥式硅整流,油浸自冷组合式。
- The Laser double focus interference spherical Profilometer is a new-type measuring instrument of high sensitivi-ty for roughness of surface. 激光双焦干涉球面微观轮廓仅是一种高灵敏度的表面粗糙度测量仪器。
- double focus interference microscope 双焦点干涉显微镜
- Abstract A double focusing ion-optical system consisting of oue cylinder electricfield and two magnetic fields is proposed in order to get uniform massdistribution in a mass ratio 4:1. 摘要 本文介绍由一个园柱电场和两个均匀磁场组成的离子光学系统,它可以在质量比4:1范围内达到双聚焦。
- 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 Alkene Double Bond: A Focus of Reactivity. 21烯烃的双键：重点是反应活性。
- 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。
- This double converter arrangement would be expensive. 这两个转化器设备是昂贵的。
- 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。
