“coal tar hydrogenation”的概念、定义、翻译、参考文献-科学参考

单词	coal tar hydrogenation
释义	coal tar hydrogenation Encyclopedia 工学炼焦释 coal tar hydrogenation煤焦油加氢煤焦油在氢气、催化剂作用下，生产石脑油馏分、柴油馏分等燃料油和化学品的过程。
随便看	concave lens concave metric concave minimization problem concave mirror concave operator concave polygon concave polyhedral angle concave polyhedron concave probability measure concave programming concaver concave sequence concave space concave surface concave-up concave-up curve concave upward concavity concavity coefficient concavity cut concavity cutting-plane method concavity downward concavo-concave concavo-convex concavo-convex lens

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