It suggests that occurrence and progress of CWP can be prevented and con- trolled if comprehensive dusc-control measures focused on wetting production can be adopted in small-sised coal mines with thin-layer coal seam.

• 提示薄煤层小型矿只要能采取以湿式作业为主的综合防尘措施，就能预防和控制煤工尘肺的发生和发展。