1.
alternate in serving
①换发球②双打中一方轮流发球
2.
(in tennis,etc)act or manner of serving the ball;person's turn to serve
（网球等的）发球,发球方式,轮到的发球权
3.
It is mandatory for everyone to attend the press conferences on a rotational basis.
在轮流参加的基础上，每个队员必须参加球队的新闻发布会。
4.
first inning
第一轮,第一次发球权
5.
axial flow turbojet
轴流式涡轮喷气发动机
6.
generating set, steam turbine, direct current
蒸汽轮机直流发电机组
7.
generating set, steam turbine, alternating current
蒸汽轮机交流发电机组
8.
gas turbine alternator
燃气轮机交流发电机组
9.
generating set, gas turbine, direct current
燃气轮机直流发电机组
10.
generator, alternating current, water wheel driven
交流水轮驱动发电机
11.
generating set, hydraulic turbine, alternating current
水轮机交流发电机组
12.
gas turbo-alternator
燃气涡轮交流发电机
13.
Each player serves for five points.The players alternate service until the end of the game.
每人发球5次,双方轮换发球,直至比赛结束。
14.
The group leader writes down, other classmates touch the ball in turn, fumble30 times altogether.
组长做记录，其他同学轮流摸球，共摸30次。
15.
Model of Quasi-Stationary Eddy Current Field in the End Region of Turbogenerators
汽轮发电机端部似稳涡流场数学模型
16.
The Calculation and Analysis on Stator Fluid Field of Turbo-generators
汽轮发电机定子流体场的计算与分析
17.
Discussion on Shaft Current On-line Monitoring of Hydro-generators
水轮发电机轴电流在线监测方案探讨
18.
Those me the rules of the game. The sever gets the point. And it was my turn to serve.
那些是比赛规则，发球者得分，而那时正好轮到我发球。