“derrick”的概念、定义、翻译、参考文献-科学参考

单词	derrick
释义	derrick [`der·ik] ^{MECHANICAL ENGINEERING} A hoisting machine consisting usually of a vertical mast, a slanted boom, and associated tackle; may be operated mechanically or by hand.
随便看	O star Ostariophysi Osteichthyes osteitis margin marginal blight marginal checking marginal chlorosis marginal cost marginal dimensionality marginal escarpment marginal fissure marginally outer trapped surface marginal moraine marginal placentation marginal plain marginal plateau marginal probability marginal product marginal relay marginal revenue marginal salt pan marginal sea marginal sinus marginal test

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。