The no staff and self-reducing tacheometer is a new type of surveying instrument designed and constructed by a group of teachers and students of our department.
无须跑尺自计视距仪是一种新式
测量仪器,经过研究,我们已初步试制成功。
The no staff and self-reducing tacheometer is a new type of surveying instrument designed and constructed by a group of teachers and students of our department.
无须跑尺自计视距仪是一种新式测量仪器,经过研究,我们已初步试制成功。
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观点；若发现问题，欢迎向我们指正。
