spacing parameter

ABSTRACT: Being a parameter of concrete antifreeze evaluation, air void spacing factor had got much more attention.

作为评价混凝土抗冻性的参数之一，混凝土气泡间距系数越来越受到重视。

Theoretically, analyzed the subsurface back to adopt the medium fan-shaped and quick-fried bore to blow up the mechanism and big parameter of spacing structures each choice that returns to adopt to blow up the parameter.

在理论上，分析了地下回采扇形炮孔爆破破岩机理和大间距结构参数下各回采爆破参数的选择依据。

Proposes remote sensing phantom division algorithm based on the condensation level cluster, and applies it into the maximum outflow boundary line-spacing bay bottom distance extraction and carries on the parameter optimization to the existing ice water recognition methods. 2.

论文的主要工作包括：1.将基于凝聚层次聚类的遥感影像分割算法应用到海冰外缘线提取上；对现有冰水识别方法进行参数优化。

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）。