Particularly, the paper brings forward a rather common principle called Water Surface Rule.

论文揭示了一个带有相当普遍性的原理，即“水平面原理”。

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Working surface; Coal body water injection; Coal dust producing; Coal dust control rule; Preventive measure;

工作面；煤体注水；煤尘产生； 煤尘治理规律；预防措施；

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Working surface; Coal body water injection; Coal dust producing; Coal dust control rule; Preventive measure;

工作面；煤体注水；煤尘产生； 煤尘治理规律；预防措施；

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