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勘合贸易
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勘合贸易
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历史学
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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。
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space cost function
space-coupling
spacecraft
spacecraft ablative thermal protection
spacecraft active attitude control system
spacecraft assemble plant
spacecraft assembly and integration
spacecraft astronomy
spacecraft attitude control
spacecraft attitude control actuator
spacecraft attitude control fly wheel
spacecraft attitude control system
spacecraft attitude determination
spacecraft attitude maneuvering
spacecraft autonomous control
spacecraft autonomous navigation system
spacecraft communication, telemetering, command and tracking system
spacecraft control system
spacecraft design
spacecraft entry technique
spacecraft formation flight control
spacecraft launch
spacecraft launching site
spacecraft magnetic test
spacecraft manufacturing
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