“first kind perpetual motion machine”的概念、定义、翻译、参考文献-科学参考

单词	first kind perpetual motion machine
释义	first kind perpetual motion machine Encyclopedia 工学热力学第一定律释 first kind perpetual motion machine第一类永动机构想的不消耗任何能量，可以源源不断对外做功的机器。
随便看	contour integral contour integration contour interpolation contourite contour length contourlet transform contour line contour line, level curve contour lines of groundwater level contour map contour map of roof/footwall contour mapping contour method contour of steepest descent contourogram contour (perimeter) hole contour planting contour plot contour plot of atomic orbital contour ploughing contour prediction contour prism contour strip intercropping contour surface contour tillage

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。