“four deficiency”的概念、定义、翻译、参考文献-科学参考

单词	four deficiency
释义	four deficiency Encyclopedia 医学四不足释 four deficiency四不足中国明代儿科医家万全提出的一种学说。
随便看	railway section block railway shunting hump railway signal railway signal indication railway signaling railway signaling power supply equipment railway signaling reliability railway signaling vital relay railway sound barrier railways passenger car equipment railway station railway station and terminal railway structural deformation survey railway subgrade engineering railway subgrade maintenance railway subgrade non-destructive detection railway switch transition equipment railway tank car railway tanker railway technical station railway terminal railway ticket railway timber transportation railway time synchronization network railway track

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。