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| 消焰剂; 阻化剂能缩短煤矿许用炸药爆炸时产生的火焰长度和火焰持续时间,降低其爆热和爆温，并能对可燃气和煤尘的氧化反应起负催化作用的物质。常用的有氯化钾、氯化钠和氟化钙等 | |||
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cooling salt : 2 phrases in 2 subjects |
| Electronics | 1 |
| Technology | 1 |
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