asphaltum

asphaltum 的中文释义

• n.

  (=asphalt)沥青, 柏油

asphaltum 的英文释义

• n.

  Mineral pitch, Jews' pitch, or compact native bitumen.

• It is brittle, of a black or brown color and high luster on a surface

• of fracture; it melts and burns when heated, leaving no residue. It

• occurs on the surface and shores of the Dead Sea, which is therefore

• called Asphaltites, or the Asphaltic Lake. It is found also in many

• parts of Asia, Europe, and America. See Bitumen.

• n.

  A composition of bitumen, pitch, lime, and gravel, used

• for forming pavements, and as a water-proof cement for bridges, roofs,

• etc.

  ; asphaltic cement. Artificial asphalt is prepared from coal tar,

• lime, sand, etc.

asphaltum 的词形变化

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