An extension of Shanghai Metro Line 2 to the airport is under construction.
延长上海地铁2号线到机场正在建设中。
The test device has been applied to Shanghai metro line 1, with excellent results.
目前该测试装置已在上海地铁1号线投入使用，效果良好。
The test device has been applied to Shanghai metro line 1, with excellent results.
目前该测试装置已在上海地铁1号线投入使用，效果良好。
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