“portal crane”的概念、定义、翻译、参考文献-科学参考

单词	portal crane
释义	portal crane [`pȯrd·ǝl `krān] ^{MECHANICAL ENGINEERING} A jib crane carried on a four-legged portal built to run on rails.
随便看	electromagnetic system of units electromagnetic theory of light electromagnetic transducer electromagnetic units electromagnetic wave electromagnetic-wave filter electromagnetic well logging electromagnetism electromanometer electromechanical electromechanical circuit electromechanical coupling coefficient electromechanical dialer electromechanical plotter electromechanical recording electromechanical relay electromechanical transducer electromechanics electrometallurgy electrometer electrometer amplifier electrometer tube electromigration electromodulation electromotance

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