塑料从细孔中挤压出来形成纤维。
Plastic material is extruded through very small holes to form fibres.
细孔与幼绳同用或可作保护板用。
Small hole can be used with thin ropes if necessary, or as a belay plate.
戳上一些2厘米长的细孔，在成卷的顶部。
Cut several 2cm-long slits, 2cm apart, into the top of the roll.
和人类的皮肤一样，土壤也有许多洞叫毛细孔。
和人类的皮肤一样，土壤也有许多洞叫毛细孔。
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