“column crane”的概念、定义、翻译、参考文献-科学参考

单词	column crane
释义	column crane [`käl·ǝm ´krān] ^{MECHANICAL ENGINEERING} A jib crane whose boom pivots about a post attached to a building column.
随便看	echoplex technique echo power echopraxia echo pulse echo ranging echo-ranging sonar echo recognition echo repeater echo signal echosonogram echo sounder echo sounding echo-splitting radar echo suppressor echo talker echouterograph echovirus echylosis eckermannite Eckert number Eckert projection ECL eclampsia eclipse eclipsed antigen

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