"速球"是个多义词，它可以指速球（多功能高科技器械）,速球（美国漫威漫画旗下超级英雄）。
mlb 2k10球种问： mlb 2k10全部的球种如何投 要讲怎摸案 要很详细答： 速球(Fastball)：下+上二缝线速球(2-seam FB)：上+右切球/卡特球(Cut Fastball..
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投球机器人投出泡沫塑料球的速度可达25英里/小时，但石川更希望将速度提高至93英里/小时，使其可以发出低于常速的投球，如曲线球和滑球。
The pitching robot throws a plastic foam ball at 25 miles per hour, but Ishikawa is hoping to increase the speed to 93 mph and make it able to throw off-speed pitches like curves and sliders.
投掷其实是身体部分的顺序解锁，在释放球的时刻达到最大的手速。
Throwing is the sequential unlocking of bodyparts to achieve maximum hand speed at the moment of releasing the ball.
介绍了导球式限滑差速器的结构，论述了其差速运动及限制滑动的原理。
The structure of the guiding ball type limited slip differential is introduced. The principle of differential motion and slip limitation are dictated.
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