Spectral selectivity
[電] 光譜選擇性
?? 詞語組成解析
spectral
['sp?ktr?l]
adj. （似）鬼的;幽靈的;譜的;光譜的;
n. 選擇性, 選擇度\\n[化] 選擇性
??? 情景例句
John is tied up at the present time.
John現(xiàn)在有事。
Are there any discount tickets for me?
給我有折扣嗎？
How could we do that?
怎么說呢？