... 饱和压力 Saturation ressure 保持环 retaining ring 保护层的形成 rotective Layer Formation ...
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保持环境卫生 Keep our environment clean ; Maintain environmental hygiene ; Environmental hygiene
保持环境干净 Keep the environment clean
保持环境清洁 keep the environment clean ; help keep the environment clean
请保持环境清洁 Please keep the environment clean
帮助保持环境干净 Help keep environment clean
保持环境整洁 Neat Living Environment ; keep the environment clean
帮助保持环境整洁 help keep the environment clean
帮助保持环境清洁 help keep the environment clean
请保持环境卫生 Please keep the environment clean
目前关于保持环工艺参数和磨损率的确定都是依靠反复的试验或经验确定，周期长，成本高，浪费大。
At present, the technical parameters and the wear rate of the retaining ring are confirmed through trial or experience, which usually has longer periods, higher cost and larger waste.
Holzel博士介绍说，冥想者们通常端坐在椅子上或地板上，保持静默，尽管有时在某一环节会有引导的声音。
Generally the meditators are seated upright on a chair or the floor and in silence, although sometimes there might be a guide leading a session, Dr. Holzel said.
与此同时，冷却系统使环超流氦沿对撞机的加速环循环，使其温度保持在零下271.3摄氏度(零下456.34华氏度)。
Meanwhile, the cooling system that circulates superfluid helium around the LHC's accelerator ring keeps the machine at minus 271.3 degrees Celsius (minus 456.34 degrees Fahrenheit).
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