磁力悬浮，或者磁悬浮，使这个旋转的球始终保持在同一位置，比循环滚动机器洗得更干净。
Magnetic levitation, or maglev, holds the ball in place while it spins around, getting clothes cleaner than a circular-spinning drum ever could.
把主球放在棕球置点上，试着使其在被击打后沿着发球线滚动。
Place the cue ball on the brown spot and attempt to hit it along the baulk line.
结果18例成功放置双j管行内引流，1例因输尿管上段高度纡曲狭窄置管失败，6例行单纯球囊扩张。
Results Balloon catheter dilatation was performed in 6 cases. DoubleJ ureteral stent was successfully placed in 18 cases, and failure to success in 1 case due to tortuous ureter.
钳制球分别设置于容置槽内，且每一钳制球凸出于转动环的外表面。
The clamping balls are arranged in the accommodating grooves respectively, and each clamping ball is protruded out of the external surface of the turning ring.
钳制球分别设置于容置槽内，且每一钳制球凸出于转动环的外表面。
The clamping balls are arranged in the accommodating grooves respectively, and each clamping ball is protruded out of the external surface of the turning ring.
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