静止土压力 static earth pressure ; Pressure at rest earth ; at rest pressure, Po

防止土壤流失 halt soil erosion slow down

静止土压力系数 earth pressure coefficient at rest

土压力静止土压力 earth pressue at rest

防止土壤板结 keep soil from packing together

防止土崩 Prevention earthfall ; Eartbfall prevention

土静止压力 earth pressure at rest

防止水土流失 prevent water losssoil erosion ; prevent water loss and soil erosion

树林阻止大风把土带走 Trees blocked wind swept away

土地银止 land bank