“four tonal categories of the old Chinese”的概念、定义、翻译、参考文献-科学参考

单词	four tonal categories of the old Chinese
释义	four tonal categories of the old Chinese Encyclopedia 文学古四声释 four tonal categories of the old Chinese古四声先秦两汉时期汉语声调的总称。
随便看	cryogenic metallic sealing material cryogenic physiological hazard cryogenic propellant cryogenic pump cryogenic radiometer cryogenic refrigeration system cryogenic refrigerator cryogenic refrigerator above 2K cryogenic refrigerator below 2K cryogenic regenerative gas expansion refrigeration cycle cryogenics cryogenic safety cryogenic separation cryogenic separation of coke oven gas cryogenic separation of Natural gas cryogenic separation of pyrolysis gas cryogenic stability cryogenic storage cryogenic system cryogenic systems and equipment cryogenic telescope cryogenic-temperature refrigeration cryogenic transition electron microscopy cryogenic wind tunnel cryogenic working medium

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。