Pulsed tungsten argon arc welding
[化] 钨极脉冲氩弧焊
🧩 词语组成解析
a. 脉冲的；跳动的；脉冲调制的
tungsten
[['tʌŋstən]]
n. 钨\\n[化] 钨W
argon
[['a:gɔn]]
n. 氩\\n[化] 氩Ar
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
She was sick so the didn't attend her classes.
她生病了，所以没上学。
To examine the problem
检讨问题
If only he were here.
要是他在就好了。