gray pig iron是什么意思

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Study on characteristics of ash and slag from two kinds of hospital waste incinerations;

两种医疗垃圾焚烧炉的灰渣特性研究

2 Atmospheric Furnace of atmospheric vacuum unit in Tianjin Company, ash deposited seriously on the outer surface of furnace tube and the heat efficiency of atmospheric furnace decreased.

中国石油化工股份有限公司天津分公司Ⅱ套常减压蒸馏装置的常压炉因燃料中硫、盐、金属等杂质含量较高致使炉管外表面积灰严重 ,降低了常压炉的热效率 ,炉膛温度由 710℃上升至 815℃ ,超出了工艺要求的指标 ,装置只能降量生产。

And some researches in the low-line and lime-free liming process also were summarized.

通过23篇文献资料,综述了国内外少灰、无灰浸灰现状,总结了一些自20世纪中后期以来制革者对少灰、无灰浸灰所进行的研究。

The degree of certainty to which objects belongs to or not belong to a class is viewed as the degree of greyness of grey nubers.

将某一对象属于或不属于某一集合的程度视为灰数灰度,本文在集合空间提出了一种基于粗糙隶属函数的灰数灰度规范化定义与分级方法,研究结果表明,提出的方法清晰地说明了灰数灰度的含义,合理地解释了对象可分类的灰度级别,且可以获取不同灰度级别的概率规则集。