“井架”的概念、定义、翻译、参考文献-科学参考

单词	井架
释义	井架 Encyclopedia 工学竖井提升释 headframe井架位于竖井井口附近或斜井井口前方，安装有提升机天轮、箕斗卸载设备和过卷保护设备的高架矿山构筑物。工学井架释 mast/derrick井架在钻井或修井过程中，用于放置天车，悬挂顶驱、游车、大钩等设备，存放钻杆、油管及抽油杆，以便进行起下钻具、钻进、下套管等作业的装置。
随便看	value of a class value of a continued fraction value of a determinant value of a differential game value of a flow value of a function value of a functional value of a game value of a mapping value of a matrix game value of an argument value of an arithmetic function value of an error value of an estimator value of an expression value of an infinite product value of a parameter value of a polynomial value of a problem value of aquatic products value of a term value of a variable value of controlling interest value of division value of educational policy

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。