“bitumen”的概念、定义、翻译、参考文献-科学参考

单词	bitumen
释义	bitumen [bī`tü·mǝn] ^MATERIALS Naturally occurring or pyrolytically obtained substances of dark to black color consisting almost entirely of carbon and hydrogen, with very little oxygen, nitrogen, or sulfur.
随便看	multiple-effect evaporator multiple-entry system multiple epidermis multiple fabric multiple-factor incentive plan multiple fault multiple firing multiple-frequency-shift keying multiple fruit multiple-function chip multiple gun multiple hereditary exostoses multiple hydraulic pump multiple-impulse welding multiple independently targeted reentry vehicle multiple infarct dementia multiple-instruction-stream\|multiple-data-stream multiple integral multiple jacks multiple-junction solar cell multiple-key access multiple-keyboard point-of-sale system multiple lamp holder multiple-length arithmetic multiple-length number

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。