“crown block”的概念、定义、翻译、参考文献-科学参考

单词	crown block
释义	crown block [`krau̇n ´bläk] ^{PETROLEUM ENGINEERING} A wooden or steel beam joined to the tops of derrick posts of an oil well to support pulleys.
随便看	interstitial endometriosis interstitial-free steel interstitial gland interstitial hepatitis interstitial hernia interstitial implants interstitial impurity interstitial inflammation interstitial keratitis interstitial lamella interstitial myocarditis interstitial nephritis interstitial plasma-cell pneumonia interstitial pneumonia interstitial radiation interstitial water interstitial water saturation interstitioma intersymbol interference intersystem communications intertergite interterminal switching intertidal zone intertoll trunk intertropical convergence zone

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。