Light and float, the rope body in bright orange or orange light system is given priority to, with functions of reflective and luminous, which is easy to distinguish in danger.
质量轻便，可漂浮于水面，绳体用鲜艳的橘红色或橘黄色亮色系为主，具有反光和夜光功能，在危险时刻容易辨识，为生命保驾护航。
Using this chart to distinguish the explosion danger caused by the mixture of gas and air is more complete and accurate than the chart of gas detonation triangle.
采用它判别瓦斯与空气混合气体的爆炸危险性时，比用瓦斯浓度三角形更加全面、准确。
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