soil column的用法和樣例：
例句
- The nitrate vertical transport rule in farmland soil of Tai Lake area was studied.
摘要用模擬土柱和田間定期采樣的方法對太湖地區農田土壤中硝態(tài)氮垂直運移規律進(jìn)行了研究。 - An experiment of water, salt and heat movement in soil columns in the lab under simulated evaporation conditions was conducted.
在模擬蒸發(fā)條件下，通過(guò)室內土柱實(shí)驗，對土壤水鹽熱的遷移做了初步研究。
