thick seam造句

The hands of a loving mother line, wandering onto clothing. Departure thick seam, Italy may delay return. Who made the heart-inch grass, reported a three Chunhui.

The application of a high production and efficient mining technology in special thick seam is highly obstructed by those above problems.

Shotholes are prepared by powerful drills. The drills may be mounted on mobile platforms, where an unusually thick seam is being worked in two benches; the bulldozer clearing the upper one gives some idea of the height.