煤層的英文:
a vein of coal
coal bed
coal seam

參考例句:
  • top surface of coal bed
    煤層頂面等高線圖
  • Shale underlies coal.
    頁巖層在煤層之下。
  • Shale underlies the coal.
    頁巖層在煤層下面。
  • The degree of carbonization of coal depends on the temperature
    煤層的炭化程度取決于溫度。
  • The average UK coal seam is one metre thick.
    英國煤層的平均厚度為1米。
  • The average width of the seam is more than 50 meters.
    平均煤層寬度大于50米。
  • Because this coal bed thickness is moderate, selects the shield type hydraulic pressure support.
    由于該煤層厚度適中,選用掩護(hù)式液壓支架。
  • In order to loosen the coal, the miners made holes in the dividing wall and filled them with explosives
    為了使煤層松動(dòng),礦工們在隔墻上打了炮眼,裝進(jìn)了炸藥。
vein是什么意思
n. 血管,靜脈;紋理;葉脈;巖脈;性情
v. 使有脈絡(luò);象脈絡(luò)般分布于

  • It is veined by railroads.
    鐵路線四通八達(dá)。
  • Radiography of veins or a vein after injection of a radiopaque substance.
    靜脈造影術(shù)在注入射線不能顯著穿透的物質(zhì)之后對靜脈的放射線照相術(shù)
  • Varicose vein (or varix):Twisted vein distended with blood.
    靜脈曲張:伴有血液潴留的靜脈扭曲或擴(kuò)張。
coal是什么意思
n. 煤,木炭;煤塊
v.(給…)加煤;把…燒成炭

  • Coal is a mineral.
    煤是一種礦物。
  • The coal will be shipped by rail.
    這些煤將用火車裝運(yùn)。
  • The boat is freighted with coal.
    這條船裝載煤。
bed是什么意思
n. 床,睡眠處;睡覺;(海、河、湖等的)底部;苗床
v. 把...安置在;為…提供住宿(床位);睡,臥

  • Procrustean bed
    逼人就范之物
  • Bed rest is more like bed agony.
    上床睡覺好象是種苦惱。
  • It has bedded into the deepest crevices of the store.
    它已鉆進(jìn)了店里最隱避的隙縫。

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