现有的空调维修工具
existing air conditioning service tool
现有的空压机带轮
existing air compressor pulley
现有的疫苗
currently available vaccines
existing vaccines
在现有的数据库启用工作流程
enabling workflow services on an existing database
气象现象占有的面积
cover area of meteorological phenomena
现有产品的改良或修正
improvements in or revisions of existing products
现有产品线的增加
additions to existing product lines
现有建筑物的保护
protecting installed construction
现有交易所的清盘
liquidation of existing exchanges
现有楼宇的结构检定
appraisal of existing structure