“well-rig”的概念、定义、翻译、参考文献-科学参考

单词	well-rig
释义	well-rig Encyclopedia 工学水利机械释 well-rig打井机械用来开发地下水资源的机械，包括各式钻机（又称打井机）、水泵（泥浆泵），以及与其相配套的卷扬机等。
随便看	functor algebra functor category functor category; category of functors functor Ext functor Hom functorial functorial colimit functorial completion functorial homomorphism functorial isomorphism functoriality functorial limit functorial map functorial morphism functorial property functorial transformation functor language functor of diagrams functor of families functor of several variables functor of the second order functor of the third order functor preserving limit functor Tor fund accounting

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。