这个基本概念在大多数水力学教科书中已有介绍.This basic concept is illustrated in most texts on hyd aulics.根据水力学原理设计的泵体,噪声最小.According to the design of water pump body mechanics the smallest noise.因而,本论文在河道汇流上采用水文学与水力学相结合的方法.Accordingly the co...
The teacher unified the answer of her pupil with hers.老师核对了学生的答案.The First Emperor of Qin unified China in 221 B.C.秦始皇于公元前221年统一中国.The emperor unified the country by the sword.那位皇帝用武力统一了全国....