“petroleum tar”的概念、定义、翻译、参考文献-科学参考

单词	petroleum tar
释义	petroleum tar [pǝ`trō·lē·ǝm ´tär] ^MATERIALS A viscous, black or dark-brown product of petroleum refining; yields substantial quantity of solid residue when partly evaporated or fractionally distilled.
随便看	realization real line real linear group real number real object real orthogonal group real part real plane real power real precession real source real storage real-time real-time clock real-time control system real-time holographic interferometry real-time operation real-time processing real-time programming real-time system real unimodular group real-valued function real variable ream reamed extrusion ingot

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