孔隙度降低
Based on the relationship between windbreak structure ( optical porosity) and wind reduction, the chief indices for determining spacing interval, i.e., the windbreak structure index() and the parameter of microclimate, represented by the problem wind ( Lrp), were determined.
基于林带结构(疏透度)与风速降低的关系,确定了林带主带间距离的主要参数,即,林带结构系数(δ)和以主害风为代表的小气候参数(Lrp)。
Besides, a certain proportion of sodium bicarbonate to acid ammonium carbonate is conducive to porosity of product structure and the reduction of product hardness.
此外,一定比例的碳酸氢钠和碳酸氢铵混合作为化学膨松剂有利于产品结构疏松多孔,降低产品硬度。
Reduction of Thermal Spraying Coating Porosity
降低热喷涂涂层孔隙率的方法
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