Application results show clearly that this method is feasible and that the principle of leak detection by ultrasonic technique is effective to vacuum systems.
实践表明，该方法是可行的。所给出的应用超声波技术检测真空系统泄漏的原理和检测方法是有效的。
Application results show clearly that this method is feasible and that the principle of leak detection by ultrasonic technique is effective to vacuum systems.
实践表明，该方法是可行的。所给出的应用超声波技术检测真空系统泄漏的原理和检测方法是有效的。
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