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
是一种新式
量
,经过研究,我们已初步试制
功。
量；绘；大地量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.
无须跑尺自计视距是一种新式量,经过研究,我们已初步试制功。
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