soiln.土地;土壤;污物,粪便v.弄污
soilflown.泥流
soillimen.石灰土
soiltestn.土壤试验
soil pat土饼块
soil-N土壤氮
soil rot土壤中腐烂
soilnail土钉
soil map土壤分布图
soilstep土质台阶
soilpipen.污水管(粪管)