“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	voltage regulation and control voltage regulation in rural electric power networks voltage regulator voltage response voltage source voltage source inverter by self-commutation voltage source inverting circuit voltage stabilizer voltage stabilizing circuit voltage stabilizing diode voltage standard voltage standing wave ratio voltage step voltage to frequency conversion voltage transformation ratio voltage transformer voltage transmission coefficient voltage-turns ratio voltaic arc voltaic cell voltaic coupling Voltaic Democratic Movement Voltaic Democratic Party – African Democratic Rally Voltaic pile Voltaire

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。