### Chinese: 使用混凝土模块筑建检查井的优势在于模块的上下左右四周均为凹凸槽结构，组合砌筑形成链锁。
### English: The advantage of using concrete modules to build inspection wells is that the upper, lower, left and right sides of the modules are all concave-convex groove structure, and the combined masonry forms a chain lock.
### Errors: There is a major error of incorrect translation does not accurately represent the correct translation at "inspection wells instead of inspection shafts". There is a major error of incorrect translation includes information not present in the correct translation at "concave-convex groove structure instead of concave groove structure". There is a major error of incorrect translation is missing content from the correct translation at "combined masonry instead of combined masonry structure". There is a minor error of incorrect translation has stylistic problems at "upper, lower, left and right sides instead of top, bottom, left and right sides".

### Improved English: The advantage of building inspection shafts using concrete modules is that the four sides of the modules are of concave groove structures, which are built to form chain locks.