A sample plot of the unstable frequency with crank speed is illustrated.
绘制了不稳定频率相对于曲柄速度的样本曲线。
Therefore the environment of these five sample plot, Hebei Dongling was most fit for introduction.
因此这五个试验地环境相比，河北东陵最适合柔枝松的引种。
Therefore the environment of these five sample plot, Hebei Dongling was most fit for introduction.
因此这五个试验地环境相比，河北东陵最适合柔枝松的引种。
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