ceramic sight tube 陶瓷瞄准管
cylindrical sight tube 圆筒瞄准管
sight-feed tube [化工] 可视进料管
sight-glass tube 水位观察窗
tube sight 管式表尺
torpedo tube sight 发射瞄准具
torpedo tube sight angle 鱼雷发射管瞄准角
When using EZ-TC, close No. 1 and 2 shutoffs and install sight tube using adaptor fitting.
在采用EZ - TC时，关闭1号和2号关闭阀，采用适配器连接件安装观察管。
Assemble 3 piece water column sight tube in numerical sequence and attach to top half of body module adaptor.
安装3件式水量数字序列观察管，并将其附加在阀体模块适配器的上半部。
The orientation of these tubes naturally blocks the line of sight from the adjacent apartments and while gazing down the length of the tube from inside only the ocean can be seen.
这些管形空间的方向自然地阻挡了邻近公寓的视线，同时从室内沿管形空间的长边向下注视，只能看到大海。
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