Besides, what people should pay attention to is that used battery, the light tube of daylight lamp, mercury thermometer, paint pot and medicine are all toxic wastes, which need special disposal.
另外，需要注意的是，废电池、日光灯管、水银温度计、油漆筒、药品等都是有毒垃圾，需要特别的处理。
2
A thermometer often now, and more often back in the early 1800s, consists of a glass tube up which a column of mercury or alcohol can travel from a reservoir at the base.
现在常见的温度计由一个玻璃管和一个位于底部的贮液槽组成，贮液槽中的水银或酒精沿玻璃管上升形成液柱。
3
Excited by the current, the mercury atoms emit ultraviolet light, which bombards the phosphor coating on the inside of the tube.