观测卡特拉鱼的形态特征和1—3龄鱼主要可量性状及其比例的变动。
This paper describes the morphology and changes in the major measurable characters and their ratios in 1— 3 year-old Catla carla.
本文对黄精属17种药用植物从植物形态、生药性状、组织特征以及化学成分等进行了系统的比较研究；
The article reports the plant morphological, phirmacognostical, histological characters and chemical constituents of 17 Species of medicinal plants from genus Polygonatum.
运用计算机对中国兰花37个品种和37个形态特征性状进行了数量分类研究。
In this paper, 37 varieties and 37 characters of Chinese cymbidium are studied by means of numerical taxonomic methods.
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