“勘合贸易”的概念、定义、翻译、参考文献-科学参考

单词	勘合贸易
释义	勘合贸易 Encyclopedia 历史学国际关系史释 Tributary trade勘合贸易中国明朝时期的对外贸易制度。因采用“勘合符”作为贸易许可证而得名。又称贡舶（赐）贸易。
随便看	frequency locking frequency-locking frequency matching frequency measurement frequency measuring equipment frequency meter frequency meter, frequency counter frequency method frequency mixing frequency-modulated cyclotron frequency modulated oscillator frequency modulated wave frequency modulation frequency modulation and control frequency modulation and demodulation frequency modulation, FM frequency modulation laser frequency-modulation laser interferometry frequency modulation of hydro-generator unit frequency modulation radar frequency modulation radio frequency modulation screening frequency modulator frequency multiplication frequency multiplier

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