From the concept and characteristics of forest graphics library, the standard design of forest graphics library layers is accomplished, and the compartment polygon is enclosed.
该文从森林图形库的概念和基本特征出发，完成森林图形库图层的标准设计和森林图形中小班多边形的封闭。
The operation characteristics of a Kuhni column and the effect of compartment height on the behaviour of the column were investigated.
考察了文题所述塔的操作特征及隔板高度对其影响。
Some major characteristics of the carbon cycle in grassland ecosystems were summarized, and a carbon cycle compartment model was introduced as well;
概述了草地生态系统碳素循环的一般特征，介绍了一个草地碳循环的分室模型；
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