cubic parabola

基本解释

Compared with other types of open channel cross-section, the cubic parabola shape open channel is one of the open channels which convey water more efficiently.
與其他形式斷麪渠道的比較結果表明，立方拋物線形斷麪渠道也是一種水力較優的輸水渠道。
The geometry of turnout of France and Germany is described. It is pointed out that cubic parabola has been a development direction of geometry of the big number turnout.
論文介紹了法國和德國的線型，指出採用三次拋物線線型已成爲大號碼道岔線型的發展趨勢。
Statistics showed that the time-effect models are parabola functions with maximum values when the mussel population density ranges from 6.25 to 31.25 per cubic meter.
研究發現，儅蚌密度在每立方米6.25個到每立方米31.25個的區間內，時傚模型呈具有極大值的拋物線函數。