The vent hole size and the pressure drop are the important parameters which affect cooling rate and cooling uniformity in pressure pre-cooling of fruit and vegetable.
果蔬差压通风预冷包装箱的开孔大小及包装箱两侧的压差是影响预冷速度、冷却均匀性的重要参数。
In the present invention, an insulating film adhesive material is attached onto the wirings in the form of a tent so that an empty space communicating with a vent hole is provided.
在本发明的芯片支持基片中，把绝缘性膜状粘接构件帐篷状地贴到布线上边，设有与通气孔相连的空隙。
It is expounded the characteristics of dust pollution of the area above raw material chute in iron works, as well as an application example of travelling vent hole equipment for dedusting.
叙述了炼铁厂原料矿槽槽上扬尘污染的特点，及“移动式除尘通风口装置”技术在槽上除尘的应用实例。
It is expounded the characteristics of dust pollution of the area above raw material chute in iron works, as well as an application example of travelling vent hole equipment for dedusting.
叙述了炼铁厂原料矿槽槽上扬尘污染的特点，及“移动式除尘通风口装置”技术在槽上除尘的应用实例。
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