next in sequence; second; the second (day, time etc); secondary; vice-; sub-; infra-; inferior quality; substandard; order; sequence; hypo- (chem., meaning extra oxygen atom); classifier for enumerated events: time[cedict]
紫外线
zǐ wài xiànㄗˇ ㄨㄞˋ ㄒㄧㄢˋ
ultraviolet ray[cedict]
辐射
fú shèㄈㄨˊ ㄕㄜˋ
radiation[cedict]
反应
fǎn yìngㄈㄢˇ ㄧㄥˋ
to react; to respond; reaction; response; reply; chemical reaction[cedict]
及
jíㄐㄧˊ
and; to reach; up to; in time for[cedict]
一
yīㄧ
one; 1; single; a (article); as soon as; entire; whole; all; throughout[cedict]
颗
kēㄎㄜ
classifier for small spheres, pearls, corn grains, hearts, satellites etc[cedict]