“pumping unit dynamometer card”的概念、定义、翻译、参考文献-科学参考

单词	pumping unit dynamometer card
释义	pumping unit dynamometer card Encyclopedia 工学抽油机示功图释 pumping unit dynamometer card抽油机示功图由载荷随位移的变化关系曲线所构成的封闭曲线图。
随便看	osculating orbit osculating orbital elements osculating parabola osculating paraboloid osculating plane osculating point osculating quadric osculating regulus osculating space osculating sphere osculating strip osculating surface osculating tangent osculating tetrahedron osculation osculation circle osculation plane osculation point osculation process osculatory interpolation osculum OS detection Oseam Oseberg Ship Burial in Norway Oseen

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。