Cylinder compression pressure is an important parameter for measuring the hermetical state of an engine.
发动机汽缸压缩压力是检测发动机机密封性的重要参数。
It has characteristic of hermetical components can adjust and replace, reliable hermetic capability etc.
密封部位可调节更换，密封性能可靠等特点。
The novel and hermetical structure is suitable for operation under the states of both positive and negative pressure.
新颖的密封式箱体结构，适用于正、负压力状态下的运行。
The lowering hermetical state of an engine will not only cause economy and power coastdown, but also worsen the emission evaluating indicators of exhaust gas.
发动机密封性降低，会造成发动机经济性、动力性下降及废气排放指标恶化，因此对各缸压缩压力的检测具有重要意义。
The applied examples show that the magnetic coupler can achieve the non-contacting and hermetical drive without any leakage under the condition of high-pressure, ultrahigh-pressure, vacuum, etc.
应用实例表明，采用磁力驱动密封装置，对于高压、超高压和真空等工况均可实现无接触的密闭传动，达到无泄漏。
The applied examples show that the magnetic coupler can achieve the non-contacting and hermetical drive without any leakage under the condition of high-pressure, ultrahigh-pressure, vacuum, etc.
应用实例表明，采用磁力驱动密封装置，对于高压、超高压和真空等工况均可实现无接触的密闭传动，达到无泄漏。
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