物理学家将X射线引入真空密闭腔中，填充少量的惰性气体。
The physicists directed the X-ray flashesinto a vacuum chamber filled with a few atoms of an inert gas.
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.
单晶炉炉室真空密闭性能是衡量单晶炉设备性能好坏的重要因素。
The obturation of vacuum in the crystal grower is one of the most important factors to judge the equipment capability.
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