Pulsed metal argon-arc-welding
[化] 熔化极脉冲氩弧焊
🧩 词语组成解析
a. 脉冲的；跳动的；脉冲调制的
metal
['mɛtl]
n. 金属;金属元素;成色;金色;
vt. 以金属覆盖;
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
Things are looking up.
情况在好转。
Doesn't matter what you say.
说了也没用。
have been frightened out of their wits by giant fish bumping into them as they work.
他们曾在工作时被撞到他们身上的大鱼吓得惊惶失措。