cold straightening

例句：

1. 1. The new hairstyle is apopular choice for those who want to lookcool and sophisticated.
   这种新的发型是那些想要看起来酷和有品位的人的热门选择。
2. 2. The cold wave straightening techniquehas been widely used in hair salonsaround the world.
   冷直发技术在全球范围内的美容院中被广泛使用。
3. 3. The coldwave straightening process involves using heat tostraighten hair without damaging it.
   冷直发过程涉及使用热能来平整头发，而不损害它。