“workover derrick”的概念、定义、翻译、参考文献-科学参考

单词	workover derrick
释义	workover derrick Encyclopedia 工学修井井架释 workover derrick修井井架用于安放天车、游车等吊升系统设备和工具，并用以起下和存放钻具的钢架结构。
随便看	land intensive industry land investigation Landis land-launched supporting system land law land law and regulation Land law of Xingguo Soviet government (Lithography) land layout land lease land leasing land legislation in the period of the Jacobin’s dictator land leveler land leveling land leveling project land limitability land location landlocked state landlord Landlord Port land marginal revenue land mark landmark land market land market characteristics land market management

科学参考收录了854744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。