It is featured by such advantage as small weight, great loading capacity, goodlooking shape, simple structure, convenient erection quick heat dissipation and fine permeability.
它具有重量轻、载荷大，造型美观，结构简单、安装方便、散热透气好等优点。
Fine roots could also improve soil permeability effectively to decrease runoff and weaken soil erosion.
须根还能有效地增强土壤渗透性，减少径流，从而达到减少土壤冲刷的目的。
The resulting reservoirs are primarily of secondary porosity with fine throats and very low permeability.
形成了小容量特低渗透性细喉道以次生孔隙为主的双孔隙度储集层。
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