结合水平仪、自准直仪、激光准直仪等测量仪器开发了直线度误差实验教学软件。
Based on the alignment measurements such as level meter, gradienter and laser collimator, the instructional software for straightness measuring and evaluating is developed.
自准水平激光仪是利用激光作为准直光，广泛应用于地面平整、地面处理和渠道挖掘等方面。
It is a kind of application which USES laser as collimation light in the laser beacon.
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