The alimentary canal of Octopus variabilis Sasaki is studied with histological and histochemical methods.
用组织学和组织化学方法对长蛸消化道进行了研究 。
The variations of cork characters from 10 populations of Quercus variabilis in Shaanxi province are analyzed.
对陕西境内10个栓皮栎群体栓皮性状变异情况进行了试验分析。
Time series model can simulate and predict the increase of Quercus variabilis population by the difference, periodic method.
时间序列分析可以通过差分、周期的方法，对植物种群的增长进行模拟与预测。
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