inert matter  非活性物质; 赋形物

Material of instruction; Subject matter; Matter for teaching  教材

material of instruction; matter for teaching; subject matter; subject-matter  教材

Matter for teaching; Material of instruction; Subject matter  教材

ratio of fresh matter to dry matter  青干比

Subject-matter; Material of instruction; Matter for teaching  教材

A C inert-arc welder  交流定弧熔接器

AC inert-arc welder  交流定弧熔接器; 交流定弧电焊器

AC tungsten inert gases welding  交流钨极氩弧焊

activating tungsten inert-gas welding  活性TIG焊; A-TIG焊

activating tungsten inert-gas welding with direct current straight polarity mode  直流正接A-TIG焊

Activating-tungsten inert-gas welding  钛合金

active-tungsten inert-gas welding  活性剂钨极氩弧焊

alterative current tungsten inert gas welding  交流钨极惰性气体保护电弧焊接

alternating current activating tungsten inert-gas welding  交流ATIG焊

alternating current activating-tungsten inert-gas welding  交流A-TIG焊

alternative tunsten inert-gas arc  交流TIG电弧

approval of inert gas system temporarily suspended  惰性气体临时停用批准

automatic tungsten inert gas welding  自动钨极氩弧焊

automatic tungsten inert-gas welding machine  自动焊机