The gasification reaction rate would reduce because ash would melt, which will plug the coal surface pores and increase gas diffusion resistance.

高温下煤灰发生熔融，将会堵塞煤焦表面孔隙，增大气体扩散阻力，降低气化反应速率。

youdao

The yield pseudoplasticity of slime was related to the content of oxygen containing functional group and mineral substance on the coal surface. Higher hydrophilicity of coal surface was...

料浆的屈服假塑性与煤表面活性含氧官能团和矿物质的含量有关，煤表面较高的亲水性有利于料浆屈服假塑性的改善。

youdao

Introducing the initial damage parameters of coal surface obtained by digital image processing in model, got the failure process corresponding stress state under the crack initiation and expansion.

将数字图像处理煤体表面得到的初始损伤参数引入所建立的模型中，得到了相应受力状态下的裂纹起裂、扩展破坏过程。

youdao

Enveloped in a smog of coal dust that softens the sunlight into a hazy glow is the An Tai Bao surface coal mine.

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Scottish Coal was the biggest surface mining supplier in Britain, and biggest coal firm in Scotland.

BBC: Open cast mining

Where surface coal mining disfigures landscapes, these must be restored imaginatively, creating more work for labourers but also for gardening designers, arborists and the such like.

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