The utility model relates to the measuring instrument field, in particular to an electronic bubble of an automatic leveling laser product.
本实用新型涉及测量仪器领域；具体地说是自动安平激光产品中的电子水泡。
2
Civil researches on it mainly focus on its using and precision appraisal etc. It is blank for work of the detail principle and concrete realization of digital levelinginstrument.