In this paper, a simple method of plotting logarithmic phase frequency response curve for open-loop systems is advanced.
文章给出了绘制开环系统对数相频特性曲线的简便方法。
The cell number development of Viola diffusa Ging during a culture course was similar to a "S" curve with apparent logarithmic phase.
细胞悬浮培养一个周期过程中细胞数目增长的动态基本上是一条S型曲线 ,对数生长期明显 ;
The special growth rate of Taxus cell subcultured on logarithmic phase was 1.6 folds of that on stationary phase and the production of taxol was increased by nearly 4 times;
在细胞生长的对数期继代较静止期继代的细胞增长率提高1.6倍,同时紫杉醇含量提高了近4倍;
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