Concave filiet weld
[机] 凹面堆角熔接
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
weld
[wɛld]
vt.& vi. 焊接;使紧密结合;
n. 焊接点;黄色植物染料;
🗣️ 情景例句
I want to welcome Harry and his daughter Michelle
我想对Harry和他女儿Michelle
It is convenient to know the language.
掌握这门语言会带来方便。
After taking off, we were flying low over the city and slowly gaining height,
起飞之后，我们在城市上空低低地飞行，然后慢慢爬高。