Packing Belt Unit from the first-generation update to the seventh generation of the development.
从打包带机组的第一代更新研制到第七代。
The gentle slope type slope break belt controlled the development of the fan delta system.
断阶型缓坡坡折带控制着扇三角洲沉积体系的形成和分布；
The gentle slope type slope break belt controlled the development of the fan delta system.
断阶型缓坡坡折带控制着扇三角洲沉积体系的形成和分布；
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