permanent sample plot [林] 固定样地 ; [林] 固定标准地 ; 永久标准地
temporary sample plot [林] 临时标准地 ; [林] 临时样地
yield sample plot 收获表标准地
sample plot method [林] 样地法
sample plot index 样地指数 ; 和样地指数
Sample-plot survey 标准地调查
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。
Within the stand one sample plot is laid down, often covering a large part of the stand.
在群落片段范围内设置一个样地,通常应占据群落片段的大部。
Thus setting up a single sample plot in an area can produce some rather bewildering result.
因此,如果在某个地区内只在某单块抽样小区内采样,那末就可能得到某种较为含糊的结果。
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