The engineers and technicians of Pinghu coal industry finally solved the problems of dust caught and removal which exist in the construction of pressing the wind platoon the coal bed.

• 压风排碴煤层抽放孔施工除尘一直是个难题,坪湖煤业工程技术人员通过研究和反复实验,终于较好地解决了捕尘、除尘问题。