电化学测量的两个芯片的目的是，当第三保持恒定的电化学潜力时，能够确保年稳定的电压。
Two serve the purpose of electrochemical measurement while the third keeps the electrochemical potential constant end thus ensures a stable voltage.
在阀门闸板运动的全过程中，密封面都对闸板提供恒定的引导，保持与闸板连续稳定的接触。
The face seals provide constant guiding throughout the valve stroke, maintaining continuous contact with the gate.
管子在整个印刷操作中的温度保持恒定一致，从而保证非常高的和稳定印刷质量。
The temperature in the press is kept constant during the whole operation, to avoid uncontrolled slipping.
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