用相互垂直的数个线圈构造空间磁场的极小值点,通过计算机改变线圈中的电流,使此极小值点做受控运动,从而实现通过悬浮于该处的超导球对迈斯纳效应的动态展示。
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希纳建议我脚掌先着地,接着再落鞋跟(实际做起来比听上去难多了),脚尖外撇,就像芭蕾舞演员一样。
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下一次网队进攻, 阿联接到西蒙斯的传球, 再度中投得手.
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A world-class table tennis player can put up to 9000 rpm of spin on the ball.
世界级 乒乓球手能够击出每分钟转动9000次的旋转球.
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Stop halfway to floor and twist to the left, reaching toward floor with the ball.
接近地面的时候停止后靠,腰部向左扭转,手持球靠近地面.
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So take your kids out to the park and throw the ball around , play tag, etc.
因此,带孩子到公园去,扔扔皮球, 跳跳绳子等等.
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The classic part of the whole rape, needless to say, of course , took the ball.
整个油菜花的经典部分, 不用说, 当然 是花球了.
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In ball bearings, as the radial clearance increases, the axial clearance increases as well.
在球轴承, 径向间隙的增加, 轴向游隙增长.
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He would concentrate on his ball and try to shoot from various angles.
他的精力都在球上,他试着从各个不同的角度投篮.
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轭架套管-采用铝青铜材料制作以减少操作扭矩. 大多数通径的阀门都配置滚珠轴承轭架套管.
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