又一款重力感应关屏幕的软件，把手机由上向下晃动实现关屏。
Another program that USES the G-sensor. You can turn off the screen, turning and holding the phone upside down.
方向始终由上向下，操作20次，力量不宜过大，但是要紧贴皮肤。
The direction is always from the top-down, the operation 20 times, the power should not be too large, but to close to the skin.
在相同水流量条件下，水由下向上流时水中臭氧浓度，高于由上向下流时相同水力停留时间时的臭氧浓度。
At the same flow rate the concentrations of ozone in upflow are higher than that in downflow at the same HRT.
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