size sorting

The porosity and permeability of rock are related directly to grain size and sorting characteristics.

颗粒大小和分选性对岩石的孔隙和渗透率有直接关系.

Affected by lithology and sedimentary dynamics, the main components of grain-size composition were different. Most of the frequency curves were multimodal. The size fraction was relatively coarse grained and the sorting features were generally poor.

粒度组成的优势组分受岩性及沉积动力的影响而有差异；粒度频率曲线总体以多峰型为主；粒级整体上较粗；总体分选性差；粒度参数散点图投影不集中。

This paper illustrated ecological situation of intertidal zone sediment by size, sorting coefficient and the structure of benthic community.

本文从潮间带沉积物的粒径、分选系数及底栖生物群落结构阐明潮间带生态现状。

In summer and autumn, the sediment is of find grain size, bad sorting and high BSi contents; in winter and spring, it is of coarse grain size, worse sorting, large fluctuation and low BSi contents.

研究发现夏秋季沉积物颗粒偏细、分选差，生物硅含量高；而冬春季沉积物颗粒偏粗、分选更差、各参数波动范围大，生物硅含量低。

The sorting specification could be realized through changing different hole size screen mesh.

其分选规格可通过更换不同网孔尺寸的筛网来实现.