ball carrier

基本解释

Obstruction: Players may not obstruct opposing players from making a touch or supporting the ball carrier.
阻擋：進攻放球員不得阻擋對方隊員觸碰持球者，或給予持球者幫助。
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It can solve the problems such as inhomogeneous heating of different solder bumps in ball grid array, simultaneous heating of chip and carrier with solder ball, etc.
該方法能夠很好地解決由於無鉛釺料的應用引起的日益嚴重的諸多問題，如球柵陣列中各釺料球受熱不均勻和芯片基板與釺料球同時受熱等。
Consequently, shell appears more superior to traditional plastics ball when using as biomass carrier in aerated bio-filter for ammonia removal at low pH value and high ammonia loading in influent.
貝殼填料的曝氣生物濾池相比於傳統的塑料填料曝氣生物濾池具有明顯的硝化処理優勢。

When the ball carrier is on the ground, someone on the defense must at least touch him so he's ruled down.
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