Knoop hardness number
[医] 努普氏硬度数
🧩 词语组成解析
努普显微压痕硬度试验仪
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
🗣️ 情景例句
Max has stopped crying. Max
不哭了。
Never!
决不！
They have to work hard to support their family.
他们必须努力工作来支持他们的家。