Density of spectral line
[化] 谱线黑度
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
spectral
['spɛktrəl]
adj. （似）鬼的;幽灵的;谱的;光谱的;
line
[laɪn]
n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
Your car needs a tune-up.
你的车该整修了。
I'm too cold.
我太冷。
It is better to ask for help at the beginning rather than to wait until a busy period when everyone is rushed off their feet.
最好在开始工作时就请人帮忙，而不是等到大学都忙得不可开交的时候。