Underfiring
下部加热
🗣️ 情景例句
I admire him for his success in business.
我佩服他事业有成。
Man proposes, God disposes.
谋事在天，成事在人。
below 20 per cent, its bactericidal action is negligible.
浓度低于20％时，杀菌能力基本上就不存在了。