四川盆地是中国西南部的一个盆地。它由四川省的中东部和重庆市组成。
The Sichuan basin is a basin in southwestern China. It comprises the central and eastern parts of Sichuan province, as well as Chongqing Municipality.
中国联通目前计划在中东部地区采用ASON技术，在网络优化过程中如何将成本降至最低将是联通首先考虑的问题。
China Unicom now plans to adopt ASON technology in the central-east regions. How to minimize the cost in the process of network optimization is China Unicom's first consideration.
河南大别山区含柯石英榴辉岩的发现扩大了中国中东部含柯石英榴辉岩带的分布区。
The discovery of coesite -bearing eclogites in this area enlarges the region of coesite-bearing eclogite belt in Central -Eastern China.
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