您要查找的是不是：
- mean river level 平均河水位,平均河面
- The river level rose after the rain. 雨后河里的水面升高了。
- Because of the elevation of the lake's surface compared with the river level downstream, a major difference in potential energy exists across a dam. 因为湖水水面的海拔高度，比下游河水的水面还要高，因此在水坝的两边有较大的位能差异。
- Bypassing the oxbow allows Chatham to construct a storm surge barrier which protects their section of the River, which flows along their urban edge, to prevent changes in river level. 取直河道后，查市可以修建一个防波堤。本堤可以保护河岸，驯服河水，保证河流水位长期稳定。
- When the boat passing through the long chary Gorge, we see the huge Chinese character "chuan", meaning river. 在那黄色的崕壁上，黑色的岩石组成了一个巨大的川字。
- A 10% fall in rain over Johannesburg and Bloemfontein will lead to a 70% drop in river levels. 约翰尼斯堡与布隆方丹（Bloemfontein）的降雨如果少了10%25，就可能造成该二地区的河川流量下降70%25。
- Moorhead lies on the other side of the Red River from Fargo, North Dakota, where river levels have reached record heights and is still rising. 穆尔黑德位于红河沿岸，与之隔河相望的两个城市法戈和北达科他州目前的水位已经达到最高记录，并持续上涨。
- They used climate change models to calculate the expected changes in rainfall across the continent and the effect they would have on river levels. 他们利用环境变迁模型去估量整个非洲大陆的降雨量，以及这种降雨量对河川所可能造成的影响。
- The water rose until it was on a level with the river banks. 河水上涨至与堤岸相平。
- Do you mean say we are met for a thunder storm? 你肯定我们会遇到一场雷雨？
- I feel mean for not doing more for my son. 我对没为我儿子多做点事而感到惭愧。
- The river had worn a ravine between the hills. 那条河在两山之间已造成一个深谷。
- Defeat in this election would mean he was done for. 这场选举的失败意味着他政治生涯的结束。
- By power we mean the rate of doing work. 我们说功率就是指做功的速率。
- Can we dredge the river to make it deeper? 我们能不能把这条河疏浚得深一点？
- Navigation is difficult on this river because of the hidden rocks. 因为河上有暗礁，所以在这条河上航行很困难。
- I have no conception of what you mean. 我想不出你的意思是什么。
- The police dredged up the parcel from the muddy river. 警方从浑浊的河水中捞出包裹。
- The mean yearly rainfall is20 inches. 每年平均降雨量是二十英寸。
- The entrances are constructed in deep cofferdams in the soft soils, directly located along rivers with potentially very high river levels. 入口直接沿着可能出现很高水位的河流而建,建造在松软性土壤的深围堰中。
