其三平衡的范围春天它持有的建设与精确你很难申请的需要真空设定值。
With its triple balanced range spring construction it holds a vacuum setpoint with the precision you need for tough applications.
压差设定值越大，系统的节能率越小，循环水泵在高效区内的变频范围越小，反之亦然；
The more the pressure difference value is , the less the energy-saving rate is and the less scope of high efficiency of variable pump is, and vice versa.
如果物体的线速度在这个速度设定值之下，物体将进入静止状态。默认0.15。取值范围0到无穷大。必须为正数。
The default linear velocity, below which objects start going to sleep (default 0.15). Must be positive.
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