在真空环境下，用氩为推进剂，得到了不同工况下发动机的性能参数。
In vacuum environment, the performances of the arcjet were tested under several conditions with argon as the propellent.
通过该装置实现了对超声电机负载力矩的施加以及在真空环境下对超声电机转速、转矩的测量。
With the testing system, the mechanical load is applied and the relationship between the mechanical load and the revolution speed of the ultrasonic motor is studied under the vacuum condition.
二是使用了一个在样品室非真空环境下仍然能起作用的二次电子探头。
The second is using a secondary electron detector that could function in this non vacuum sample environment.
这是一个复杂的过程，在充满微粒子的真空环境下对产品进行离子溅镀，以在产品表面形成保护层。
It is a sophisticated process, performed under vacuum which deposits microscopic particles on the products by ion bombing or sputtering, to form a protecting coating on their surface.
施加不同的预压力在低、高真空环境下对超声电机的转速、转矩及温升进行测量并与常态下相比较。
By applying different pre-pressure, the speed, torque and temperature of the ultrasonic motor in low and high vacuum have been tested and compared with the normal condition.
计算结果指出：在近地轨道选择合适的分子屏参数，可以在极高真空环境下加工超纯材料。
It is shown selecting suitable parameters of molecular shield on low-earth orbit, we can process super pure materials in extreme high vacuum.
这颗彗星蒸发的冰中含有氰和二价碳，在太空真空环境下被阳光照射时，两种气体均发出绿光。
Vaporizing ices from the comet included cyanogen and diatomic carbon, both gases that glow green in sunlight out in the vacuum of space.
去年冬天，在欧洲寒冷地区冬季极端的天气环境下，真空管集热器的热管出现了重大的结冻问题，此问题出现后，真空管集热器和防冻保护重新成为了关注的重点。
Tubular solar collectors and freeze protection has come back into focus after significant failures of heat pipes in the colder parts of Europe during extreme winter conditions.
红酒及洋酒暴露在氧气环境下极易变质，在瓶内制造低氧低压的类真空环境可使酒保鲜较长时间。
Wine rapidly deteriorates in the presence of oxygen. Creating a vacuum above the wine dramatically reduces the oxygen levels in the bottle allowing the wine stay fresh for longer.
该装置能够在不改变真空及温度环境条件下，对样品进行大载荷升温变形动态内耗及模量测试。
It can be used in plastic deformation experiments at various temperatures combined with measuring internal friction Q-1 and dynamic modulus without changing vacuums and temperature conditions.
该装置能够在不改变真空及温度环境条件下，对样品进行大载荷升温变形动态内耗及模量测试。
It can be used in plastic deformation experiments at various temperatures combined with measuring internal friction Q-1 and dynamic modulus without changing vacuums and temperature conditions.
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