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煤矿单体液压支柱有哪几种

2025年04月07日 07:00

有2个网友回答

网友（1）：

煤矿单体液压支柱有两大类：内注式、外注式。内注式单体液压支柱支柱内带有手摇泵，液体内部循环。外注式需要有一个乳化液泵站向单体液压支柱提供工作液体。目前主要使用外注式。

网友（2）：

煤矿单体液压支柱有两大类：内注式、外注式.内注式单体液压支柱支柱内带有手摇泵,液体内部循环.外注式需要有一个乳化液泵站向单体液压支柱提供工作液体.目前主要使用外注式.

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