“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	frequency band frequency bridge frequency carrier system frequency changer frequency-changer station frequency characteristic frequency coding frequency compensation frequency conversion frequency converter frequency counter frequency curve frequency cutoff frequency-dependent selection frequency deviation frequency discriminator frequency distortion frequency distribution frequency diversity frequency divider frequency-division data link frequency-division multiplexing frequency domain frequency-domain optical storage frequency-domain reflectometer

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。