water level mark

基本解釋

As the water rises and falls in the neck of the bottle, use the rubber band to mark the new level.
由于水上升和下降的瓶子的頸部，用橡皮筋，慶祝新的水平。
The water level at the Three Gorges Dam reached its planned highest mark at 9 am Tuesday, Xinhua reports.
據(jù)新華社報(bào)道，周二上午9點(diǎn)，長(zhǎng)江三峽水庫(kù)首次達(dá)到最高蓄水位。
www.china.org.cn
Urban water supply system is one part of important fundamental facilities of model city. And it is a mark of civilization and economy and modernization level.
城市給水系統(tǒng)是現(xiàn)代化城市最重要的基礎(chǔ)設(shè)施之一，是城市文明、經(jīng)濟(jì)發(fā)展和現(xiàn)代化水平的重要標(biāo)志。