existent facilities中文什么意思

现有设备

• existent:    adj. ＝existing. n. ...
• facility:    n. 1.容易，简易，轻便。 2.机 ...
• existent corosion:    原在腐蚀

例句与用法

1. Underground engineering excavation will disturb strata and causes ground settlement . it is significant to study ground settlement caused by underground engineering excavation and to reduce adverse effect on existent facility
   研究城市地下工程开挖引起的地表移动和变形，对于减少开挖对地表和地下已有设施的不良影响，对于保护地表环境具有十分重要的意义。