low expansion air foam的意思|示意
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低膨胀空气泡沫
low expansion air foam的网络常见释义
低倍空气泡沫 低倍泡沫灭火剂：low-expansion foam extinguishing agent 低倍空气泡沫：low expansion air foam 低背压泡沫产生器：low back pressure foam generator ..