“OCA”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	OCA
释义	请查阅OCA--OCA（obstacle clearance altitude）
随便看	Japanaut virus japan (black) Japan bogorchid Japan Broadcasting Corporation Japan cedar Japan Current Japanese Japanese Agricultural Standard Japanese Agriculture and Industry Standard Japanese anemony Japanese apricot Japanese apricot Japanese apricot Japanese artichoke Japanese aspen Japanese Aum Doomsday Cult Japanese azalea Japanese banana Japanese beauty-berry Japanese bellflower Japanese B encephalitis Japanese B encephalitis Japanese B encephalitis--Japanese B encephalitis（JBE） Japanese B encephalitis（JBE） Japanese black pine