The roof of the residential building was constructed in August. The waterproof coiled material was paved during the day. It was found that the waterproof coiled material was bulging and leaking during the acceptance after the construction. Explain the causes of the above engineering problems.
举一反三
- The exporting sewing machines in stout waterproof material, and in pairs in lightweight crates.
- Which material is not requested during the landing interview?
- ______ is referred to energy release, conversion, storage and utility during material metabolism.
- Being the tallest building at the time when it was built, the construction of the Empire State Building was finished during the boom years.
- During the construction of high buildings, cranes (起重机) are used to ________ building materials to the upper floors.