automatic opening and closing fixture 自动开闭夹具
closing and opening test 投切试验
delay of opening and closing 启闭延时
electrical opening and closing fixtures 电动开闭夹具
fire area opening and closing 均压通风
model of opening and closing 开闭模型
mold opening and closing guideway mechanism 开合模导轨机构
morphological opening-and-closing operation 形态学开闭运算
multiple opening-and-closing plankton sampler 复式开闭浮生物采样器
Nansen opening-and-closing net 南森开团式网
opening and closing by reconstruction 开闭重建
Opening and closing ceremonies 开闭幕式
Opening and closing ceremony 开闭幕式
Opening and Closing Mechanism 开闭机构
Opening and closing motion 分合闸
Opening and closing of furnace cup 炉盖启闭
opening and closing of mold guide agencies 开合模导轨机构
opening and closing operation of reconstruction 开闭重构
opening and closing pressure value 开闭阀值