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1·The biggest challenge of survey and alignment is the soft groundwork and the tight positioning requirement for Shanghai Synchrotron Radiation Facility.

上海光源在准直测量方案设计中面临的最大挑战来自于松软地基及高精度的定位要求。

2·He said that another round of joint survey would be conducted next month to officially notify the proposed alignment.

他说，另一项调查，将全面进行联合下月正式通知拟议路线。

3·This article introduced the application of aerial survey digital analog technology in highway alignment designing software, CARD/1.

介绍了航测数模技术在公路路线设计软件——CARD/1软件中的应用。