Discussion on condition testing the degree of ultimate vacuum of ultrahigh vacuum diffuse pump oil;
超高真空扩散泵油极限真空测试条件的探讨
Development of an Automatic Testing System for Diffusion Pumps' Performances
扩散真空泵性能自动测量系统的研制
Development of an automatic testing system for diffusion pump performance
扩散真空泵性能自动测试系统的研制
diffusion bonding
扩散结合，扩散粘结(金属在真空中加压，相互扩散而粘结)
horizontal pergent-nozzle pump
水平发散喷嘴扩散泵
Research on A-TIG Welding and Diffusion Bonding of Magnesium Alloys;
镁合金活性TIG焊和真空扩散焊的研究
Vacuum Diffusion Bonding of SiC Particulate Reinforced LD2 Matrix Composite;
SiC颗粒增强LD2复合材料的真空扩散焊
Study on welding process of Fe-Cr-Al alloy vacuum diffusion bonding
FeCrAl合金材料真空扩散焊工艺实验研究
Vacuum diffusion welding of dissimilar materials of M2/40Cr
M2/40Cr异种材料真空扩散焊的分析
mercury vapor [air] pump
汞汽泵，汞汽(扩散)抽机
The Leakage Convention Diffusion Simulation in the Airtight Space under Ventilation Condition
在通风条件下密闭空间漏气的对流扩散仿真
Study on the Microstructure and Property of the Aluminized Coating on Pure Magnesium Obtained by Vacuum Solid Diffusion;
纯镁表面真空扩散渗铝层结构和性能研究
Study on Vacuum Diffusion Bonding Technique between Magnetic Refrigerant Material Gd and Cu、Al;
磁制冷材料Gd与Cu、Al的真空扩散焊工艺研究
Study on Vacuum Diffusion Bonding of Zircaloy-4 and 316L Stainless Steel;
Zr-4合金与316L不锈钢真空扩散连接的研究
Vacuum-free Semi-solid Diffusion Brazing of SiCp/ZL101A Composites by the Aid of Vibration;
SiCp/ZL101A复合材料振动辅助非真空半固态扩散钎焊
Study on Vacuum Diffusion Welding of YG20 and Invar Alloy
YG20与因瓦合金真空扩散焊接技术的研究
Research and Implementation on Emergency Simulation and Visualization of Air Pollution Dispersion
空气污染扩散应急仿真与可视化研究及实现
Experimental Research on Vacuum Diffusion Bonding of PDC Bit
PDC钻头真空扩散焊接工艺正交试验研究
Microstructure and Properties of Vacuum Diffusion Bonded CLAM Steel Joint
真空扩散连接CLAM钢接头的微观组织与性能