Abstract
Precise leveling is an important part of engineering construction project. With the increasing requirements of engineering construction projects, the demand for smart leveling is also increasing, but in the actual survey operation, there are many shortcomings in precision leveling, which has a certain impact on engineering project construction and scientific research. Through the comparative analysis of one-way leveling and two-way round-trip leveling, it is found that there is still uncertainty in the replacement of two-way round-trip leveling by one-way leveling.
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