传统的空气污染监测仪通常安装在灯柱上，并被固定在距离地面约九英尺的空中。
Conventional air pollution monitors are normally fixed on lampposts at about nine feet in the air.
虽然传统传感器平台安装在车顶，洛克希德·马丁公司的通用桅杆系统能够提升传感器组件到离地面5米的位置。
While traditional platforms mount the sensor at the roofline, the Lockheed Martin CMS can elevate the sensor suite up to 5 meters above ground level.
楼房没有墙壁，也没有安装空调，优雅的拱形棚顶下是水泥地面和竹制家具。
There are no walls, and there is no air-conditioning. Just gracefully arched roofs, concrete floors and bamboo furniture.
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