片语
soil fertility improvement ways土壤培肥途径
soil foundation improvement地基处理
soil comprehenive improvement田土综合治理
soil fertility improvement土壤培肥
Ponds bottom soil quality improvement池塘底质改良
soil media improvement基质改良
soil layer improvement土层改良
soft soil foundation improvement软基处理
soil amendment土壤改良;土壤改良剂
soil water improvement土壤水分改良
soil dressing撒布肥土;土壤改良;客土;小培土