“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	Jiamakou Irrigation District jiamen(prologue) Jiami donkey Jiaming 1 Jiamusi Museum Jiamusi Shi Jiamuyang music of Labrang Monastery in Gansu province Ji An Jianan irrigation system Jianan Pingyuan Jian'an prints Jianan Qu Jian Baixi Jian Basins With Land and Water Battle Scenes Jian Bozan Jian brothers Jiancaoping Qu Jianchang horse Jianchang Xian Jianchuan grottoes Jianchuan Xian Jianchu Temple Jiancicun Dingyao Yizhi Ji'an County Museum (Jizhou Kiln Museum) jian cymbidium

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。