Htc
abbr. 热传导系数（Heat Transfer Coefficient）
🗣️ 情景例句
I'm surprised they're not here.
我奇怪他们怎么没来。
I wonder what happened to him.
我不知道他出什么事了。
The open sea was deep and mysterious,
无边无际的海洋深邃而又神秘，