“American standard beam”的概念、定义、翻译、参考文献-科学参考

单词	American standard beam
释义	American standard beam [ǝ`mer·ǝ·kǝn `stan·dǝrd `bēm] ^{CIVIL ENGINEERING} A type of I beam made of hot-rolled structural steel.
随便看	permanent storage permanent teeth permanent thermocline permanent water permanent wave permanganate permanganic acid Permasyn motor permatron permeability permeability alloy permeability-block method permeability coefficient permeability number permeability profile permeability trap permeability tuning permeable bed permeable membrane permeameter permeametry permeance permeant permease permeate

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