Helical fin
[化] 螺旋翅片
🧩 词语组成解析
a. 螺旋状的\\n[电] 螺线
fin
[fin]
n. 鱼鳍;鳍状物;（汽车、飞机、炸弹上的）尾翅;散热片;
vt. 给…装上翅片;切除鳍;
vi. 潜泳;（猛烈地）拍动（鳍）;
🗣️ 情景例句
It's a perfect day for a walk.
这可是一个散步的好天气。
At your request, we are offering you the following items. This offer will remain open within 3 days.
应你方要求，我方就如下产品报价，此报价3日内有效。
Were you able to quote on all the items we need?
我们需要的每个项目你都能报价吗。