...HIn−+=HIn H+ + In-酸式型体（酸式色）碱式型体（碱式色）酸碱指示剂在溶液中存在下列平衡：指示剂常数(indicator constant)][][][HInInHKHIn−+=⇒溶液颜色(取决于[H+])（二） 指示剂的变色范围 48当≤1/10时, 显HIn颜色, pH=pKHIn-1 HInIn−pH = pKHIn±...
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conditional indicator constant 条件指示剂常数
Constant flow rate manually adjustable by control dial on the front panel, Power-ON led indicator.
通过控制面板上的调节旋钮可对流量进行手动调节，还带有电源指示。
The control panel incorporates a battery charge indicator and a speed meter which assists in maintaining a constant walking speed.
控制面板、电池充电指示器和速度计能协助保持不变的走动速度。
Constant flow rate manually adjustable, proportional flow rate according to a digital input signal (from water meter), Power-ON led indicator and level control input. The two different modes are.
比例调节，可根据数字信号（比如水表发出的脉冲信号）来调节流量的比例，带有电源指示和液位探头接口，可直接连接液位探头控制计量泵启动或停止。
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