Sift the anthers onto unglazed, permeable paper, such as newspaper or paper toweling, for drying.

将花药筛到无光的、具渗透性的纸上，如报纸或卫生纸，以便花药干燥。

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Materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having an oriented permeable zone. determination of air permeability.

作卷烟纸用的材料，过滤纸和过滤嘴接缝纸材料，包括定向可透气部分用的材料。透气性的测定。

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This paper plots out the productivity formula for vertical fractures in low permeable reservoirs using approximation and correction method.

通过近似和修正方法得出了低渗透垂直裂缝油藏的产能公式。

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