1. A cranklike handle with an adjustable aperture at one end for securing and turning a bit. 
   手摇曲柄一种在一端带有可调节的孔以抓住和转动钻头的曲柄状把手
2. rear gunsight having an adjustable eyepiece with a small aperture through which the front sight and the target are aligned. 
   瞄准器的后部有一个带有小孔的可调整目镜，通过它前方的景物和目标能够排成一条线。
3. fundamental theory of aperture antenna 
   面天线基本理论
4. electromagnetic adjustable speed asynchronous motor 
   电磁调速异步电动机
5. A breach or an aperture. 
   缺口，孔

查看更多例句 相关情景会话

• 1. 可调孔径
  在线英语学习...可调孔径 adjustable aperture...可调衰减器 adjustable attenuator
  www.scientrans.com - 相关搜索