The characters, laws and main cause of formation of footage unpayable in Fenghai Coal Mine were analysed.
分析了丰海煤矿产生无效进尺的特点、规律与主要原因,从做好开采分析总结、加强地质技术管理、实施风险控制措施提高开采技术水平、建立目标考核机制等方面提出了减少无效进尺的几个对策。
In Mailath & Postlewaite(1990), there is a famous asymptotic inefficiency theorem about the provision of the public goods.
Mailath及Postlewaite在其1990年的论文中证明了公共物品供给的渐进无效性，即随着经济中个体个数增加到无穷大，公共物品被提供的概率趋向于零(而此时公共物品应被提供的概率趋向于1)。
disallow a claim, goal
不接受要求、 进球无效.
The referee disallowed the goal because one of the players was offside.
裁判判进球无效, 因为有个球员处在越位位置。
Moving attack from team members without ball in basketball competition;
浅谈篮球比赛中无球队员的移动进攻
The judge ruled that the ball was out of play and so the point did not count.
裁判判定球已出界, 所以得分无效。
The German fans were in total silence after Italy scored the goal.
意大利队进了一个球后，德国球迷鸦雀无声。
Discussion on Movement of Players not Carrying Ball in Amateur Basketball Games;
刍议业余篮球代表队在进攻中无球队员的移动
The screening cooperation of the moving of attacking players without ball
浅谈篮球比赛中无球进攻队员的移动掩护配合
That is an unusual and unsurpassed strike rate,
这些都是非凡的、无与伦比的进球记录。
The heavy rain put the kybosh on the football match.
大雨使足球比赛无法进行。
An invalid stroke in tennis and other net games that must be repeated.
触网重发网球或其他网类球中必须重发的无效发球
Comparison of the Quality and Effect of Attacks among Teams From Different Continents in the 17th Football World Cup;
第17届世界杯足球赛各洲球队进攻质量与效果
The English fans and team were surprised and then appalled as they realised the referee was not aware of what had happened and was going to let the goal stand.
当英国球迷和英格兰队意识到裁判对此毫无察觉并要判进球有效时，他们先是吃惊，继而感到愕然。
Showboat all you want in baseball, but you've still got to step into the batter's box and hit the damn ball.
棒球场上无论怎样卖弄，你必须走进击球点，击打那只该死的球。
The Matthew effect,formation and solution in the process of the globalization
全球化进程中马太效应的成因及对策
Failure Analysis and Quality Improvement of Steering Ball Studs for Passenger Cars
轿车转向球头销失效分析及质量改进
His inability to find the net, even with training ground penalties is legendary.
他向来与进球无缘，就算在训练场上他进点球也属奇闻。
The Role of Offences Duration in Regard to Its Result in Basketball;
篮球赛中不同进攻阶段对进攻效果的影响
The Failure Analysis and Improvement of the Mill Balls and the Research of the Method of Raising the Milling Efficiency;
球磨机磨球失效分析与改进及提高磨机生产效率的方法研究