coal seam

例句 (20)

• There are substantial reserves of methane gas trapped in coal seams in the area.该地区的煤层中蕴藏着大量的甲烷气体。
• Geologists discovered a vast coal seam deep beneath the surface.地质学家在地表深处发现了一个巨大的煤层。
• The miners followed the rich coal seam deep underground.
• The miners worked tirelessly to extract coal from the newly found coal seam.矿工们沿着富饶的煤层向地下深处掘进。
• Geologists discovered a thick coal seam that was previously unknown.矿工们不懈努力，从新发现的煤层中开采煤炭。
• This particular coal seam is known for its high-quality anthracite.
• This particular coal seam is known for its high-quality anthracite.地质学家发现了一个以前未知的厚煤层。
• Exploiting the thickest coal seam can be both profitable and challenging.这个特殊的煤层以其高质量的无烟煤而闻名。
• Extracting coal from a thin coal seam is often not economically viable.
• Centuries ago, entire communities were built around a productive coal seam.这个特殊的煤层以其高质量的无烟煤而闻名。
• Underground fires can burn for decades along a single coal seam.开采最厚的煤层既有利可图又充满挑战。
• Environmentalists are concerned about the impact of mining this deep coal seam.
• The new survey mapped the extent of the underground coal seams.从薄煤层中采煤通常在经济上是不可行的。
• Advanced seismic surveys can accurately map the location of a coal seam.几个世纪前，整个社区都是围绕着一个高产的煤层建立起来的。
• The stability of the overlying rock is a major concern when mining a coal seam.
• The old mine closed down because the main coal seam had been completely depleted.地下火灾可以沿着一个煤层燃烧数十年。
• Water had to be continuously pumped out of the mine to access the lower coal seam.环保人士担心开采这个深煤层的影响。
• A single coal seam can extend for many kilometers underground.
• Historically, the town's entire economy was built upon a single, massive coal seam.新的勘测绘制了地下煤层的范围图。
• Future energy policies will determine the fate of untapped coal seams.先进的地震勘探可以准确地绘制煤层的位置。