词汇	minable seams
释义	minable seams 可采煤层
随便看	Boiler safety technology specification boiler safety valve boiler safey valve boiler saline Boilers and Pressure Vessels Safety Boilers and pressure vessels TC boiler scale boiler-scale boiler scaledeposit boiler scale deposit boiler scale formation boiler scale inhibitor BS boiler scale inhibitor bs-1 boiler scaling boiler scaling hammer boiler scaling tool boiler seal boiler seam boiler seat boiler seating boiler secondary air blower boiler semi-automatic control boiler separator boiler sequence control boiler set