Htc
abbr. 热传导系数（Heat Transfer Coefficient）
🗣️ 情景例句
She is not able to take your call at the moment.
她现在没办法接你的电话。
Don't be scared of him.
不要怕他。
Can you tell me why our bid was not accepted?
请告诉我为什么我们没有得标好吗？