“unofficial market”的概念、定义、翻译、参考文献-科学参考

单词	unofficial market
释义	unofficial market 非官方市场
随便看	tangent projection tangent pump tangent roundabout tangent rule tangent run-off tangent runout tangent-saw tangent screw tangent slope tangent space tangent sphere tangent spoke tangent-spoke wheel tangent stiffness tangent surface tangent tensor tangent to periphery tangent tower tangent-tube wall tangent vector tangent vector bundle tangent vector space tangent wedge tangent-wedge method tangent welding

科学参考收录了1248194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。