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14C真空技术及设备圆弧-摆线-渐开线罗茨泵转子型线参数选择范围……………………………………………………1(16)胶粘剂在真空技术中的应用……………………………………………………………………………1(47)真空热处理炉正确使用要点……………………………………………………
14C Vacuum technology and equipment Arc-cycloid-involute Roots pump Rotor-type wire parameters Selection range ......................................................... 1 (16) Adhesive in vacuum Technical Applications ....................................................................... 1 (47) Vacuum Heat Treatment Furnace Proper Use ..................................... .......................................