Free electron density
[化] 自由电子密度
🧩 词语组成解析
free
[fri]
adj. 自由的;免费的;免税的;空闲的;
adv. 免费地;自由地，无拘束地;一帆风顺地;
vt. 免除;释放;使自由;解救;
electron
[i'lektrɔn]
n. 电子;
🗣️ 情景例句
He appeared ill at ease at the party.
他在宴会上显得很拘谨。
I went to bed at 11:30 p.m.
我在晚上11:30点睡觉了。
There's nothing better for you than plenty of water and sleep.
你最好多喝水多休息。