water-tight stratum

An aquifer is a water-bearing rock stratum such as sandstone and chalk.

地下蓄水层是一些有水的岩石层,如沙岩和白垩岩.

It is difficult for mined tunnel with shallow cover to cross water-rich sand stratum.

穿越富水砂层一直是浅埋暗挖隧道的难点.

Humectants trap water stratum corneum, making It'softer and smoother without adding oiliness or shine.

湿润剂吸收水分,使角质层膨胀, 使之柔软光滑并且不会带来油腻腻的光泽.

Haven't been dug into the water-bearing stratum, the well certainly will not produce water.

这口井没打到含水层, 当然不会出水.

Methods An inclined tube well collecting percolating ground water with powerful pump in the water-bearing stratum in the depth of30 meters below the riverbed of Huanghe River was built.

方法打斜管井深入黄河河床以下30m处，以大功率水泵抽水，经加氯消毒后供生活饮用。