Ac arc welding
[机] 使用交流电弧焊接机之焊接
🧩 词语组成解析
公元前\\n[计] 存取周期, 累加器, 声耦合器, 交流, 应用控制, 自动检查, 自动计算机
arc
[ɑ:k]
n. 综合症状;弧（度）;天穹;电弧，弧光。;
vi. 形成拱状物;循弧线行进;
abbr. American Red Cross. 美国红十字会;
a. 焊的\\n[机] 熔接, 焊接, 锻接
🗣️ 情景例句
To advertise during prime time TV is very expensive.
在电视的黄金时段买广告是很贵的。
I know the boy whose father is a missionary.
我知道那个男孩的父亲是传教士。
for their house, which had sound foundations, would have stood stoutly even if it had been almost submerged.
因为他们的房子地基牢固，即使洪水几乎灭顶也不会倒塌。