main water table

• 潜水面

main water table的用法和样例：

例句

1. Below the water table is the zone of saturation.
   潜水面以下就是饱水带。
2. An unconfined aquifer has a water table at its top and water in direct contact with the soil atmosphere.
   非承压含水层在它的上面有一个潜水面且水与土壤大气直接相连。