spread rim

例句：

1. 1. The new product has a spread rim that makes it easy to use.
   新产品有一个扩散边缘，使其易于使用。
2. 2. The artist used a spread rim technique to create the painting.
   艺术家使用了扩散边缘技术来创作这幅画。
3. 3. The spread rim is designed to prevent water from leaking out of the container.
   扩散边缘设计用来防止水从容器中泄漏出来。