方法：在北柴胡不同发育阶段取样调查。
Method: Plant samples of different growing periods were collected and investigated.
我们还可以摆脱用区域性取样调查的结论来进行全球推导的习惯。
And we can shake the habit of sampling locally and extrapolating globally.
地表可燃物载量调查采用线状相交可燃物取样调查方法，按不同径级调查可燃物载量。
The linear intersect combustibles sampling method is used for combustibles capacity measurement in different diameter grades.
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