Servo control alternating pressure test will be the trend of alternating pressure test in nation and abroad.
伺服控制型文变压力试验机将成为国内外交变压力试验机的发展趋势。
It introduced the principle of alternating pressure caused by particle vibration, when ultrasonic propagating in liquor medium.
介绍了利用超声波在液体介质中传播，使质点产生强烈振动而引起交变压力的原理。
Objective to observe the clinical effects of alternating pressure relief bed mattress in the prevention of pressure ulcer (PU), and to explore the best method for application of the bed.
目的观察波浪床对高危患者压力性溃疡(PU)发生的预防作用，探索波浪床的最佳临床使用方法。
In the alternating suction and discharge valve under the influence of pressure delivery and recycling to achieve the purpose of washing fluid.
在吸入和排出阀的交替作用下﹐实现压送与循环冲洗液的目的。
The electrical pressure, alternating one hundred thousand times per second, excites the normally inert nitrogen, causing it to combine with the oxygen.
电压的交互频率是每秒十万次，激活了通常是惰性的氮气，引发它与氧气结合。
The electrical pressure, alternating one hundred thousand times per second, excites the normally inert nitrogen, causing it to combine with the oxygen.
电压的交互频率是每秒十万次，激活了通常是惰性的氮气，引发它与氧气结合。
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