Helical weld
[化] 螺旋形焊缝
🧩 词语组成解析
a. 螺旋状的\\n[电] 螺线
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
That's okay.
没事儿。
No. Can't you see that rocket is almost falling down.
不。你不知道火箭快要倒下来了吗？
I started to sing. The baby watched and listened ,and she didn't cry any more.
我开始唱歌。小孩看着，听着，不再哭了。