“over-the-counter”的概念、定义、翻译、参考文献-科学参考

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。

单词	over-the-counter
释义	over-the-counter 非挂牌证券非上市证券市场
随便看	positive definite transformation positive delivery positive delivery of oil positive density positive derail positive deviation positive diageotropism positive die positive dihedral angle positive direction positive discharge positive-discharge bucket elevator positive-discharge elevator positive dislocation positive-dispacement pump positive dispersion positive-displacement air compressor positive-displacement compressor positive-displacement engine positive-displacement flow meter positive-displacement grout pump positive-displacement hydraulic drive positive displacement hydraulic motor positive-displacement meter positive-displacement metering valve