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天文计算演示仪
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天文计算演示仪
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astronomical computing and demonstration device
天文计算演示仪
根据当时的宇宙观、天体运行理论及历法系统等所建立的天文仪器,用来测量或预测(模拟计算)月球、太阳和行星的运动和位置。
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rural land management right
rural land ownership
rural land property right adjustment
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rural land reform
rural landscape
rural landscape planning and design
rural land securitization
rural land use rights
rural land-use structure
Rural left-behind
rural library
rural life committee
rural life opera performance
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rural life waste gas renovation
rural livelihood activities
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