水面坡度

幷结合三峡和葛洲坝两电站联合运行的实际情况，研究了调节方案对三峡水库下游河道水面比降的影响。

after-treatment electroplated surface

energy surface

cleaning the flue-gas swept surface, flue-gas swept tubes of steam boilers

elliptic Riemann surface【数】;elliptic type of Riemann surface【数】

anterior surface of petrous part【解剖】;facies anterior partis petrosae【解剖】

steam condenser providing a flowing coating of cooling liquid on the condensing surface

roughening arrangement road paving (road pavement, road surface) freshly-laid

storage surface