The hazard of our society has been introduced by settlement of inspection chamber in road, and the fee of maintenance and overhaul are incrementing every year.
检查井的沉降给社会带来很大危害，且每年用于维修检查井的费用也在递增。
The hazard of our society has been introduced by settlement of inspection chamber in road, and the fee of maintenance and overhaul are incrementing every year.
检查井的沉降给社会带来很大危害，且每年用于维修检查井的费用也在递增。
应用推荐