减少火灾烟气毒性危害最基础的工作离不开材料产烟毒性评价，然而试验方法的标准化工作进展缓慢。
The assessment of the fire effluent of the materials is the basic research item to reduce the toxicity to human beings, however, the standardization of the test method has got a very slow progress.
减少火灾烟气毒性危害最基础的工作离不开材料产烟毒性评价，然而试验方法的标准化工作进展缓慢。
The assessment of the fire effluent of the materials is the basic research item to reduce the toxicity to human beings, however, the standardization of the test method has got a very slow progress.
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