compendiary

Through to introduce equipments of vertical shaft the cautery ,compendiary introduce insufficiency of electricity-arc spray-paint to prevent cauterization.

通过对竖井井筒装备腐蚀情况和电弧喷涂长效防腐技术不足了解,建议采用玻钢复合材料井筒装备来解决井筒装备腐蚀问题。