1.
Analysis on Advantages and Disadvantages of Badminton 21 Rules--Reviewing Badminton 21 Rules from Yiyang World Cup and Chengdu Great Master Badminton Tournament;
羽毛球21分制利弊分析从益阳世界杯、成都大师赛看羽毛球21分制
2.
On the influences of "21 scoring system" on the competitions and trainings of badminton;
论21分制对羽毛球比赛与训练的影响
3.
Influence of 21-point System on Development of Men s Singles Technique and Tactics of Badminton;
“21分制”对羽毛球男单技战术发展的影响
4.
NEW SCHEME OF 21 CHANNEL CONSTANT BANDWIDTH FREQUENCY DIVIDED MULTIPLEX TELEMETRY SYSTEMS
21路等带宽频分制遥测系统的新方案
5.
The Effects of the New Scoring System of 21 Points on the Badminton Competition Law
21分新赛制对羽毛球竞赛规律的影响
6.
21 Each Ball Scoring System of Branch is to the Effect of Badminton Referee Research;
羽毛球21分每球得分赛制对裁判员的影响研究
7.
The Credit of System-The Trend of Colleges P. E. Teaching Reform in 21~(st) Century;
学分制——21世纪高校体育教学改革的发展趋势
8.
Analysis on the Reliability of DF_(21) Diesel Locomotive and Study on the Inspection and Repair System
米轨DF_（21）型内燃机车可靠性分析及修制的研究
9.
Preparation of recombinant human interleukin 21 and its immunologic activity
重组人白细胞介素21的制备及免疫学活性分析
10.
The Effects and Countermeasures of 21-Score-Point Match Rule on Badminton;
21分每球得分新赛制对羽毛球运动影响及其对策分析
11.
Co-Delivery Mir-21 Inhibitor and Chemodrug by Poly (Amidoamine) Dendrimer Attenuates Human Glioma Cells in Vitro
PAMAM树形大分子介导miR-21抑制剂联合化疗抑制脑胶质瘤研究
12.
Athlete s Technical Characteristics and Psychological Manifestation in the Matches of Twenty-one Points System and Eleven Points System;
运动员在21分和11分制比赛中的技术特点和心理表现
13.
ANALYSIS ON EPIDMIOLOGICAL CHARACTERISTICS OF 21 RABIES CASES AND THE RELATED CONTROL AND PREVENTION
岳池县21例狂犬病的流行病学特征及其预防控制措施分析
14.
and the equinox is fixed in the calendar as March 21.
春分是在3月21日。
15.
(See Figure 21-21).
（参见图21-21）
16.
And what if the dishes on top of 21 aren't hot yet
要控制21号建筑上面的雷达好办吗？
17.
Development of 21mm aortic valvo-pump
21毫米人造心脏瓣膜泵的设计及研制
18.
US Basic Projects for RD of the 21st-Century Autos
美国确定21世纪汽车研制的基础项目