她面对漆黑的塔壁静静地坐着，不知白天黑夜。
There they sat in the darkness, and knew not when day or night began.
因操作条件变化和原油带水严重，造成常压塔顶部塔壁腐蚀穿孔。
Owing to the change of operating condition and serious water bearing in crude oil, the top of atmospheric tower is corroded and boring.
干粉表面粘附与塔壁的几何形状、粗糙程度、空气流速、静电力等有关。
The wall sticking of dry powder is concerned to geometric figure of cyclone chamber, roughness of wall , velocity of air and static charge.
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