... Var. variable 不定的，易变的 Vents Ventilators 通风筒 W/T water tight 水密 ...
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帆布通风筒 windsail ; ventube ; [船] canvas ventilator ; canvas windsial
鹅颈式通风筒 gooseneck ventilator ; Swan Neck Venilator
通风筒缘围 ventilator coaming ; ventilating coaming
鹅颈形通风筒 gooseneck ventilator ; swan neck ventilator
鹅颈通风筒 swan neck ventilator ; gooseneck ventilator
箱道通风筒 trunk ventilator
舱壁通风筒 wall ventilator ; cabin wall ventilator
帽形通风筒 hood ventilator
弯管通风筒 elbow ventilator ; goose-neck ventilator
怎样安装水平通风筒？
它们可以吸入高空的凉风，经通风筒导入室内。
They trap cool breeze high in the air and funnel them into the houses.
通过对电动提升模板施工系统工作原理、施工工艺的介绍，详细说明了通风筒壁各部分施工中应注意的问题。
This paper describes the principle and construction procedures of electrical template-hoisting construction system, and expounds the points for attention in constructing the trunk walls.
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