Ion fractionation
[機] 離子分餾
?? 詞語組成解析
ion
['ai?n]
n. <物>離子;
n. 分別, 分餾法\\n[化] 分級; 分餾; 分凝
??? 情景例句
Wonderful!
太棒了！
I'm always disappointed when I don't get any mail.
當我收不到任何郵件時，我總是很失望。
A long time ago, one of his ancestors who lived in Africa went into the forest to cut down a tree to make a drum.
很久以前，他那生活在非洲的祖先中有一人走進森林去砍樹來做鼓。