Standard practice for collection of surface dust by micro - vacuum sampling for subsequent metals determination 后成金属测定用高真空取样法进行表面灰尘收集的标准实施规程
Shutting extent of oven door is adjustable . closed - cell silicon gasket ensures a high vacuum degree in oven 箱门闭合松紧能调节，整体成型的硅橡胶门封圈，确保箱内高真空度。
It boasts the most advanced automatic and continuous high vacuum exhaust platform and automatic vacuum film - plating production line 拥有国内最先进的圆盘连续式高真空自动排气台及全自动真空镀膜生产线。
The content of this paper is about the 13x ' s adsorption and desorption characteristics at high vacuums and low temperatures to the water vapor 通过试验测试了13x型分子筛在高真空低温环境下，对水汽的吸附特性。
Generally , the use priority is given to rectangular groove , and triangle groove is used under ultra - high pressure and ultra - high vacuum 一般情况下优先使用矩形槽，只有在特高压、特高真空的情况下才使用三角槽。
The air - tightness of the chamber door is adjustable , with a wholly - shaped silicon rubber door sealing loop ; so as to guarantee in - chamber high vacuum 箱门闭合松紧能调节，整体成型的硅橡胶门封圈，确保箱内高真空度。
Measurements of electrical properties of electronic tubes ; methods of measurement of emission current from hot cathodes for high - vacuum electronic tubes and valves 电子管电气性能测试.第14部分:高真空电子管加热阴极
The series h pump can be a backing pump when combined with another high vacuum smelting , vacuum drying , vacuum impregnate and high vacuum simulation testing , ect 广泛地应用于真空冶炼、真空干燥、真空浸渍、高真空模拟试验以及其他真空作业上。
A ) si thin film with sub - micro thickness was epitaxial grown on heavy - doped si substrate by ultra high vacuum chemical vapor deposition ( uhv - cvd ) A )利用超高真空化学气相沉积( uhv - cvd )技术在重掺si衬底上生长高晶体质量的亚微米级薄硅外延片。
Measurements of the electrical properties of electronic tubes . part 13 : methods of measurement of emission current from hot cathodes for high - vacuum electronic tubes and valves 电子管电性能的测量.第13部分:高真空电子管热阴极发射电流的测量方法
