... 通常吃水 ordinary draught 通风帽 ventilating cowl 通风与空调室 ventilation and air-conditioning room ...
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在优选实施例中，空气通风帽44通常由平面硬聚合板构成，并且具有通常的长方形。
In the preferred embodiment, the air cowl 44 is constructed of a generally planar, rigid, polymeric panel and has a generally rectangular-shape.
空气通风帽44不限于被构造为包括通常的弓形，呈通常的平面形或者由模塑聚合物材料构成。
The air cowl 44 is not limited to constructions including a general arcuate-shape, being generally planar or to being constructed of a molded, polymeric material.
安装到瓶帽孔顶部的阀的特征在于：它具有小通风帽（3），该帽容 纳倒转的柔性容器（4）。
A valve attached to the top of the cap port is characterised in that it has a small ventilated cap (3) housing an upside-down flexible vessel (4).
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