但是，当二氧化碳含量高时，叶孔收缩。
But when carbon dioxide levels are high, the leaf pores shrink.
检查各种门、窗、人孔盖、烟囱百叶窗、舱口盖操作的便利性和可靠性。检测烟囱百叶窗的闭合性。
Inspect the convenience and reliability of all kinds of doors, Windows, manhole covers, hatch. Inspect the closing of louver of funnel.
这是这个原因，这使得它比传统塑料通风孔或百叶窗更好。
It's because of this, that makes them better than a conventional plastic vent or louver.
两侧百叶窗式通风孔，便于空气流通。
论述了转子叉形齿叶根销孔加工用钻模的设计方法及制造时关键要点。
This paper gives the design method and key point during machining of pin holes on rotor for the fork-type blade root.
本文介绍在平面叶栅风洞上进行的“孔窝群”端壁叶栅和原始(光滑)端壁叶栅对比试验研究结果。
An experimental investigation of end wall flow control for pit-array cascade plate in a compressor cascade wind tunnel has been completed.
在不同位置采用五孔探针测量了两种叶栅的气动参数并在叶片表面做了墨迹流动显示。
Aerodynamic parameters of the two cascades are measured by a five-hole probe at different positions and ink trace flow visualization is conducted on blade surfaces.
大厦正面由两层玻璃组成（外层玻璃是双面涂釉的），内设通风孔和由电脑控制的百叶窗。
The front of the building consists of two layers of glass (the outer one double-glazed) enclosing a ventilated cavity with computer-controlled blinds.
另外，对叉型叶根，文中提出了一种简化的接触模型，并根据计算结果给出更合理的销钉孔载荷分布拟合公式。
Furthermore, as for the fork blade roots, a simplified contact model is put forward and according to the calculation results, a more reasonable pin-hole load distribution model is given in this paper.
计算不同叶长，叶宽，孔数的喷丝板毛细孔的当量直径，单孔流量，剪切速率，喷头拉伸比，三叶异形孔压力降和异形度。
The diameter, flow, shear rate, draw ratio, pressure difference and degree of profile in different configuration of capillary hole were calculated.
目的：优选用于纯化叶下珠总多酚的大孔树脂。
Objective: to selecting the best macroporous resin for purifying total polyphenols in Phyllanthus Urinaria l.
银杏叶提取物中的主要杂质成分有银杏酚酸、大孔树脂残留、溶剂残留。
The main impurity components of Ginkgo Biloba leaves extracts were ginkgo acid, macro porous resin residua and solvent residua.
机身有几个清洗孔，直接将浇水管接到清洗口，冲水清洗刀片以及机身上的早叶。
The mower has a washing hole. Attach a garden hose to this opening and let water run to wash the blade and to wash grass of the mower body.
并结合以前通过五孔针测量取得的流场进行了分析， 得出了该叶栅中紊流参数的变化规律。
The test Reynolds number based on the incoming flow and the blade chord was 100000. The measured results were analyzed in conjunction with the flow fields mapped by using five hole probe.
并结合以前通过五孔针测量取得的流场进行了分析， 得出了该叶栅中紊流参数的变化规律。
The test Reynolds number based on the incoming flow and the blade chord was 100000. The measured results were analyzed in conjunction with the flow fields mapped by using five hole probe.
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