Hardness penetration
[机] 硬化深度
🧩 词语组成解析
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
penetration
[,pɛnɪ'treʃən]
n. 渗透;穿透;[军]突破;洞察力;
🗣️ 情景例句
Can we catch a cab here?
在这儿能叫到出租车吗？
The demand for our products has kept rising.
要求定购我们产品的人越来越多。
When the instrument is situated at more than 700 miles from the earthquake centre,
如果把这种仪器安装在距震源700多英里远的地方，