Submersible sewage pump in the air can contain explosive methane or coal dust in the safe use of the mine.
潜污电泵可以在空气中含有甲烷或爆炸性煤尘的矿井中安全使用。
Introduce operation instructions, peculiarity of structure, procedure of development, productive benefit, market trends, developing foreground of submersible motor pump used in coal mine, etc.
叙述了煤矿用潜水电泵的使用要求、结构特点、研制程序、生产效益、市场动态和发展前景等。
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