Soil hydrometers: Used to analyse the soil by the departments of farming, forest, water conservancy, architecture, etc.

土壤计：供农林、水利、建筑等部门对土壤分析之用。

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The new energy development is "almost a spider web coming down to the forest, " said Nels Johnson of the Pennsylvania chapter of The Nature Conservancy, which estimates the state could see thousands of miles of new pipelines over the next two decades.

WSJ: Northeast drilling boom threatens forest wildlife