就像其他大多数控制面临的状况，这里有一个平衡点，实践是验证真理的唯一标准。
Like many other control situations, there is a trade off and the only way to really tweak it is to experiment.
你可以由点按将带你去成员控制面板的成员登录标签在任何时间检查你的帐目平衡。
You may check your account balance at any time by clicking on the member login TAB which will take you to the member control panel.
隔膜控制面盘，数字计时器电子平衡控制。
Divide control facial disc, digital timer electronic balance control.
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