Esophagus fistula method and microscopic examination technique were used to analysis the botanical composition, and preference index of forage selected by grazing sheep on alpine pasture.
利用植物显微技术镜检法和食道瘘管法对放牧绵羊采食的高山草原植物成分与嗜食性指数进行分析。
Introduction on basic frame drum technique around the world, the component and method of music composition. Besides, there will be introduction about throat singing technique.
简介世界各种手鼓基本指法，以及作曲组成部分与方法。同时，亦会介绍喉唱入门技巧。
The composition of bacterial communities in the formation water is determined by most probable number method, pour plate method and roll-tube technique.
利用最大或然数法、倾注平板法和滚管法对产出水中的细菌群落状况进行了分析。
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