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单词 asphaltum
释义

asphaltum


asphaltum

(ˈæsfæltəm) n1. (Art Terms) a substance used to protect surface areas of metal that do not require to be etched2. (Art Terms) an oil colour, usually dark brown, used for metal surfaces and obtained by mixing asphaltum with oil3. another name for asphalt

asphaltum


asphaltum

[a′sfȯl·təm] (materials) Bituminous material in oil of turpentine; used in photomechanical work because of its ability to be rendered insoluble in light.

asphaltum

1. Natural asphalt. 2. In painting, asphalt from residues of crude mineral oil.
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