改造升级
Improvement
upgrading reform
rebuild and upgrade
Reconstruction and Upgrade
净水厂升级改造
Water treatment plant upgrading
升级改造方案
Upgrading and modifi-cation plan
网络升级改造
network upgrade reform
network upgrading transformation
network reform and upgrade
微机化升级改造
Micro computerized upgrading
信息化再制造升级
informationized remanufacturing upgrade
构造改造成矿作用
Structural reactivated mineralization
构造改造样式
structurally reworking pattern
Loader软件升级
the loader software update