In the upper portion of the sandwich with hydrocyclone guide blade and packing filter layer.
在内夹层的上部设有旋流导向叶片及填料过滤层。
Recharge well with a filter layer is a kind of valid recharge facilities in groundwater reservoirs.
反滤回灌井是地下水库中一种有效的回灌设施，它由回灌井和井口反滤层组成。
Maintaining malt shell's integrity and forming loose filter layer whose thickness may increase 15-20%.
可保持麦芽壳皮完整，形成疏松高效的过滤层，滤层厚度可增加15 - 20%。
The emitter further comprises at least one electroluminescent layer (19) and the filter is provided with at least one filter layer (20, 21).
发射器还包括至少一个电致发光层(19)，并且所述过滤器设置有至少一个过滤层(20,21)。
The coarse filter layer is positioned proximal to a direction of fluid flow, and the fine filter layer is positioned distal to the direction of fluid flow.
所述粗滤层定位于流体流动方向的近侧，并且所述精滤层定位于流体流动方向的远侧。
Water flows through the utility model from bottom to top, and dirt is attached to the lower end of the filter layer, so that the utility model is easy to wash.
本实用新型的水流为下进上出式，污垢附着过滤层下端，故极易冲洗。
The face mask consists of double-layer non-woven cloth in which filter layer, nose bridge bar and face mask belt is set, or is made of multi-layer medical absorbent gauze.
口罩由双层无纺布中间夹过滤层、鼻梁条和口罩带构成，或由多层医用脱脂纱布经缝制而成。
Vertical flow of the sandy filter layer and well flow of the common partially penetrating recharge well are combined to make a well flow of the partially penetrating recharge well with a filter layer.
非完整反滤回灌井井流运动由砂反滤层的竖向流和非完整回灌井井流组合而成。
Vertical flow of the sandy filter layer and well flow of the common partially penetrating recharge well are combined to make a well flow of the partially penetrating recharge well with a filter layer.
非完整反滤回灌井井流运动由砂反滤层的竖向流和非完整回灌井井流组合而成。
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