This paper introduces the features of the operation mode of material bed of TG-3MI type mixed gas producer.

文章介绍了煤气发生炉满料层操作方式的特点。

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Under the spring device's pressure, rollers do Numbers flexible extrusion to material bed and make them become fineness, and the result is very ideal.

在弹簧装置的压力下，磨辊在料层上作数十次柔性挤压使物料成粉末，粉磨效果十分理想。

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Roller mill is a highly efficient grinding equipment which is widely used in cement, chemical industry. It based on the principle of material bed to grinding materials.

辊式磨是一种高效的粉磨设备，广泛应用于水泥、化工等领域，它是利用料床粉磨的原理来进行粉磨物料。

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Opportunity has been trundling around Mars ever since, though it was designed for only a ninety-day mission. (Spirit got stuck in a sand trap in 2009 and quit transmitting nearly a year later.) It never found the lake bed, or organic material of any kind.

NEWYORKER: The Martian Chroniclers