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
They have an opening.
他们有一个空房间。
By the time we got there,the play had already begun.
等我们到那里，戏已经开始了。
The work is coming along quite well.
工作进展得相当顺利。