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curved tunnel
 curved tunnel
tech. 曲线隧道
| gate
 gate
cont.cast. 浇口
met.
roll. 道次
semicond. 栅区; 栅极; 门极; ; 控制极; 选通脉冲

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curved tunnel
tech. 曲线隧道
curved tunnel
: 1 phrase in 1 subject
Plastics1