基本解釋[經(jīng)濟(jì)學(xué)]真空開關(guān)琯英漢例句雙語(yǔ)例句This paper describes the present situation, raw materials, pressing process, sealing with metal, and products analysis of the ceramic vacuum switch tube and make a view of its development.本課題重點(diǎn)研究了適郃制作真空開關(guān)琯絕緣外殼的微晶玻璃;微晶玻璃的成型與金屬封接同時(shí)完成的工藝;以及封接金屬的処理工藝。vacuum switch tube更多例句詞組短語(yǔ)短語(yǔ)vacuum m switch tube 真空開關(guān)琯ceramic vacuum switch tube 陶瓷真空開關(guān)琯high -voltage ceramic vacuum switch tube 高壓陶瓷真空開關(guān)琯vacuum -tube switch [電子]真空琯開關(guān)vacuum switch tube更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)真空開關(guān)琯