例句與造句

1. it was specially pointed out that, when the tail water is constant maximum tide, the computed flood surface is higher than that of nonsteady current, so there is some safety superelevation . underestimation of the roughness will make downward bias to compute along-river surface and bring hidden trouble for flood control . to improve the section can decrease the water level or offset the water rise for increase of floodplains " roughness, but it need much engineering works
   特別提出，按照恒定流計算出來的設(shè)計水位比非恒定水位具有一定的安全儲備；而對于灘地糙率的低估又會造成設(shè)計水位的偏低，給防洪工作帶來隱患；如果利用改進斷面形式來降低水位或彌補糙率增加帶來的水位抬高，需要較大的工程量，所以平時應(yīng)注意灘面的減糙管理工作。
2. It's difficult to find maximum tide in a sentence. 用maximum tide造句挺難的