1.
Application of ball hitters in table tennis technical testing;
多球发球机应用于乒乓球技术考核的实验研究
2.
The tennis-service needs more strngth.
网球式发球需多点力度。
3.
semidiesel engine
半柴油机，热球式发动机
4.
Multi-frequency band measuring system applies to analyze sound of mill
球磨机磨音多频带检测系统的研发与设计
5.
X to serve,Y to receive.
X发球,Y接发球。
6.
(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
7.
Gene Rearrangement of Immunoglobulin Heavy Chain and the Pathogensis of Mutiple Myeloma
免疫球蛋白重链基因重排与多发性骨髓瘤发病机制的研究进展
8.
Research on Improvement of Physical Ability through Multi-ball Training in Badminton;
羽毛球多球训练对提高身体机能能力的研究
9.
The Experimental Research Concerning the Influence of Serve Motive Conflict on Performance
发球动机冲突对发球绩效影响的实验研究
10.
What will happen if it was the first attempt?
如果擦网球是第一发球时出现的，那么该队员还有几次发球机会？
11.
The Multi-Development of Competitive Volleyball and the Revival of Mass-Volleyball Activities;
论竞技排球的多元化发展和娱乐性排球的复兴
12.
National Statistical Bureau forecasts: global economic development will bring China many opportunities
国家统计局预测：全球经济发展将给中国带来很多机遇
13.
Promoting Effect and Mechanism of Polyamines during the Conversion of Protocorm-like Bodies of Dendrobium Huoshanense to Shoots
多胺促进霍山石斛类原球茎芽发生及作用机理的研究
14.
Moving mechanism of the throw-able multi-locomotion stated global robot
可抛掷多运动态球形机器人移动机构
15.
A discussion on the all-in-one of receiving after changing"small"table tennis ball to the"big one"
从乒乓球“小球”改“大球”看接发球“一体化”
16.
The Development and Experiment Investigation of Automatic Ball Filter for Ball Mill;
钢球磨煤机自动选钢球装置的开发和实验研究
17.
The Cognitive Experimental Study on the Conflict of Volleyball Athletes Serve Motive;
排球运动员发球动机冲突的认知实验研究
18.
roundhouse serve
大力钩手发球，抡臂发球