“Helderbergian”的概念、定义、翻译、参考文献-科学参考

单词	Helderbergian
释义	Helderbergian [´hel·dǝr`bǝrg·ē·ǝn] ^GEOLOGY A North American stage of geologic time, in the lower Lower Devonian.
随便看	strobe marker strobe photography strobe pulse strobilation strobilocercus strobilus strobing stroboscope stroboscopic direction finder stroboscopic disk stroboscopic lamp stroboscopic photography stroboscopic tachometer stroboscopic tube strobotron stroke stroke analysis stroke-bore ratio stroke center line stroke density stroke edge stroke speed stroke volume stroke width stroma

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。