m type tube 中文意思是什麼
m type tube
解釋
m 型電子管-
Study on a single - stage g - m type pulse tube cooler with helium and hydrogen mixture
單級脈管製冷機性能研究 -
Abstract : the proper of miaogou bridge is a through railway arch bridge with the concrete - filled in steel tube, which main span is 76 m. the construction, arch type, structural analysis, and section determination of this bridge are introduced
文摘:西安安康鐵路廟溝大橋主橋為主跨76m的下承式鋼管混凝土拱橋,介紹了該橋的構造、拱型、結構分析、截面擬定等主要設計思想。
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