例句與用法

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1. Biological measures for utilization and development of salinized soil
   改良和開發(fā)利用鹽漬化土壤的生物學(xué)措施
2. Effects of mixture of compost and chick - muck on improvement of salinized soil
   內(nèi)蒙古東部地區(qū)鹽漬土資源概況及改良利用
3. Characteristics and current situation of salinized soil in da ' an city , jilin province
   吉林省大安市鹽漬化土壤特征及現(xiàn)狀研究
4. Abstract : salinized soil in gansu province is mainly distributed in hexi corridor besides a few in lanzhou city and baiyin city
   文摘:介紹了甘肅省土壤鹽漬化的狀況，分析了引起土壤鹽漬化的因素，并進行了土壤鹽漬化對生態(tài)環(huán)境損害的經(jīng)濟評估。
5. In recent years , such problems as the extension and application of on - film irrigation , reclamation of salinized soils , and prevention of secondary salinization have made it important to study coupled movement of soil water , salt and heat transfer under plastic mulch in arid and semi - arid areas
   近年來覆膜灌溉的推廣應(yīng)用、鹽堿地開發(fā)和改良以及土壤次生鹽堿化防治等問題使得研究西北干旱-半干旱地區(qū)覆膜條件下土壤水、鹽、熱耦合遷移規(guī)律成為重要課題。