“山西煤系”的概念、定义、翻译、参考文献-科学参考

单词	山西煤系
释义	山西煤系 Encyclopedia 理学二叠纪煤系释 shanxi coal measures山西煤系早—中二叠世时期山西组地层发育时期连续沉积形成的一套含有煤层并具有成因联系的沉积岩系。
随便看	traffic safety risk evaluation traffic safety's day traffic safety technology traffic saturation traffic separation chart traffic shaping traffic sign traffic signal control traffic signal controller for lanes on urban road traffic signal control system Traffic Signal Timing traffic signal timing traffic signal timing design Traffic sign management traffic signs and markings design traffic simulation system Traffic Sociology Traffic space competition traffic speed meter traffic square facilities Traffic structure traffic structure traffic surveillance traffic system management traffic travel survey

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。