“Sirenia”的概念、定义、翻译、参考文献-科学参考

单词	Sirenia
释义	Sirenia [sī`rē·nē·ǝ] ^{VERTEBRATE ZOOLOGY} An order of aquatic placental mammals which include the living manatees and dugongs; these are nearly hairless, thick- skinned mammals without hindlimbs and with paddlelike forelimbs.
随便看	action entries action integral action period action portion action potential action-reaction law action spectrum action stub action variable actium activate activated alumina activated bauxite activated carbon activated cathode activated charcoal activated clay activated coal plough activated complex activated diffusion activated macrophage activated rosin flux activated sintering activated sludge activated-sludge effluent

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。