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1·Soil is sampled with a core sampler.

土壤的采样使用芯形采样器。

2·To take samples that retain the larger structure of the sediment, a core sampler is used.

为了保持样品沉积物的层次结构，就要用空心铁管采样器。

3·To take samples that retain the larger structure of the sediment, a core sampler is. used.

为了保持样品沉积物的层次结构，就要用空心铁管采样器。