论文部分内容阅读
本文着重介绍了近十年内,“激光水准仪”、“电子水准器”的革新和发展。同时分剐列举了这些仪器的主要类型及其它一些有关的问额。
This article focuses on the innovation and development of “laser level” and “electronic level” in the past ten years. At the same time, the main types of these instruments and other relevant questions are listed.