I needed two layers to precisely control small stones distributing with two ranges - from curbs to distance and the second to increase density of stones close to the curbs.

我需要两个图层是为了精确地控制两个范围小石子的分布——从边石到远距离和第二个从逐渐增加的石子密度到边石。

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Objective To analyse the results of cockroach density inspecting from 1999 to 2002, and to find out cockroackes sorts, composing and cockroaches distributing and its season growth and decay in Fushun.

目的对1999~2002年蟑螂监测密度结果进行分析，了解抚顺地区蟑螂种类、构成与分布以及季节消长，以便有针对性地对城市蟑螂进行防制。

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Lexical density, processes distributing, average sentence length, formality, mood distribution and violation of Gricean Cooperative Principle are the parameters to be under statistics.

列入统计的变量包括词汇密度、过程分布、平均句子长度、语体分值、语气分布和对合作原则的违反几项。

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