由热分析实验数据归纳提出了表征煤和半焦着火、燃烧及燃烬性能的无量纲综合燃烧指数Z。

A new dimensionless combustion index Z has been proposed to describe the combustion behavior of coal and char.

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纤维综合品质指数是既能评价棉纤维品质质量，又能反映成纱品质质量的一个综合指数，是一个无量纲的参数。

The integrated cotton fiber quality index could either estimate the quality of raw cotton fiber or estimate yarn tensile quality, and is a parameter of no units.

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对于文中研究的液滴，无量纲完全蒸发时间随烟气温度变化呈指数递减规律。

For the droplet considered, the life time of droplet reveals the index declining rule along the flue gas temperature varying.

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对于文中研究的液滴，无量纲完全蒸发时间随烟气温度变化呈指数递减规律。

For the droplet considered, the life time of droplet reveals the index declining rule along the flue gas temperature varying.

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