单词	toluene
释义	toluene /ˈtɒljʊiːn / noun [mass noun] Chemistry A colourless liquid hydrocarbon present in coal tar and petroleum and used as a solvent and in organic synthesis. Alternative name: methylbenzene; chemical formula: C6H5CH3. The raw materials for today's dyes are mainly aromatic hydrocarbons: benzene, toluene, naphthalene, anthracene, pyrene, and others.... In combination with nitric acid, toluene gives trinitrotoluene. The powdered bark can also be treated with solvents, such as toluene, or amyl alcohol to extract the quinine. Origin Late 19th century: from tolu + -ene.
随便看	plano- planoconcave planoconvex plano-cylindrical plan of action (or campaign or attack) planogamete planogametic planogram planograph planographic planography planometer planometric planometry plano-miller plano-milling machine planont planorbiform Planorbis planorboid planosol planosolic plano-spherical planospiral planospore

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