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宁夏贺兰山国家级自然保护区
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宁夏贺兰山国家级自然保护区
Encyclopedia
农学
国家级自然保护区
释
Ningxia Helanshan National Nature Reserve
宁夏贺兰山国家级自然保护区
中国以干旱风沙区森林生态系统与珍稀野生动植物资源为主要保护对象的森林生态系统类型自然保护区。地理坐标为东经105°49′~106°41′,北纬38°19′~39°22′。
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solid propellant grain
solid propellant rocket motor
solid propulsion system
solid radioactive waste
solid radiowaste
solid ramjet rocket engine test
solid rocket booster
solid rocket divert and attitude control motor
solid rocket motor ball-socket nozzle
solid rocket motor bead support nozzle
solid rocket motor case
solid rocket motor combustion chamber
solid rocket motor flexible nozzle
solid rocket motor ignition device
solid rocket motor insulation
solid rocket motor nozzle
solid rocket motor performance parameters
solid rocket motor propellant gain
solid rocket motor reversal nozzle
solid rocket motor self-destruction device
solid rocket motor tailpipe nozzle
solid rocket motor test
solid rocket propellant
solid rubber vulcanization
solids control equipments
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。
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更新时间:2026/6/11 20:01:33