• The physical and chemical properties of welding arc affecting the amount and toxicity of fumes generated during manual arc welding with low carbon steel basic electrodes are investigated.

    本文研究影响碳钢碱性焊条焊接烟尘及其毒性电弧物理化学因素。

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  • 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基础工作离不开材料产烟毒性评价然而试验方法标准化工作进展缓慢

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  • 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基础工作离不开材料产烟毒性评价然而试验方法标准化工作进展缓慢

    youdao

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