This will be of great importance in increasing the level of classification and determination of phytoplasmas, epidemiological forecasting and the control of relevant diseases.
这对于提高植原体的分类鉴定、致病机制、流行预测及病害防治等研究水平具有重要的作用和意义。
The existing problems on the classification, determination and elevation of water ratio limit as well as the bearing capacity of muddy soil are inquired in the paper.
对粉土的分类、界限含水率的测定、评价和承载力等方面存在的问题进行了探讨，并用实际工程资料对粉土密实度、压缩性和承载力的评价方法进行了分析。
The paper presents in detail the fundamental principle, classification procedures, and determination of parameters. And further, a comparison is made with other classification m...
本文详细阐述了该方法的基本原理、分类步骤以及参数的确定，并与其它分类法进行了比较。
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