美国环境保护署敦促承建商对1978年前建成的房屋进行铅安全的整改工作，把正在施工的房间隔离开，同时使用真空蒸发器和面具防止铅尘弥漫。
The U. S. Environmental Protection Agency obliges contractors to do lead-safe renovations on pre-1978 homes, isolating rooms where work is under way and using special vacuums and masks for dust.
根据不同施工工具，按说明书规定的重涂间隔及涂膜厚度保证涂装质量。
According to different construction tools, according to the instructions specified interval and re-painted to ensure quality of coating film thickness.
重涂时间的间隔，由施工时的温度和涂膜固化的程度（以手触不粘）来确定。
The interval of the coating time is determined by the temperature at the time of construction and the degree of curing of the film (by hand).
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