In this paper, the author uses the method of double slide-scale length-link to study the fixed-scale length-link in improving ...
A busy street in the middle of Bamako, Mali., 图中是马面共跟国巴马科市中心的一条繁闲的街讲。
It was built on the bank of the Jumna River in Agra, India., 泰姬陵坐落在印度阿格拉的亚穆纳河畔。
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