... shrinkage crack 收缩裂缝；干缩裂缝 shutter opening 挡板 shutter 活动遮板；百叶窗 ...
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shutter opening angle [摄] 快门开角 ; 快门开口角
shutter opening degree 遮光器开度
shutter and door opening 快门和开门
shutter with variable opening 可调开度遮光器
Rolling shutter opening methods are varied, electric remote control, electric button, manual remote pole, pull strap, spring shaft drive and so on.
卷帘窗的开启方式有多种多样，电动遥控、电动按键、手动摇杆、手拉皮带、弹簧轴驱等。
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They do that with a conventional camera by opening up the aperture of the lens and selecting a faster shutter speed.
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