At present , the check standard of rotating laser has not come into being , and the manufacturers and users still use the traditional i angle method of gradienter which have long - distance , low precision and in the stage of eyeballing 目前激光扫平仪检定的专业标准尚未形成，生产厂家对激光扫平仪的检测方法还在沿用传统水准仪?角检测法，检测的距离大，检测的精度较低，处于人工目视阶段。
您当前位置：