viewport metatag 还支持最小和最大伸缩，可用来限制用户对呈现页面的控制力。
The viewport metatag also supports minimum scale and maximum scale, which can be used to constrain just how much control a user has over the rendering of the page.
在钢铁城匹兹堡，梅隆竞技场号称拥有世界上最大的、可伸缩性不锈钢圆形屋顶，是首个用于大型体育竞技场的此类屋顶。
Why it's unique: Located in steel City, Mellon arena proudly boasts the world's largest stainless steel retractable dome roof, the first retractable roof for a major indoor sports arena.
这里的目的是最大化可伸缩性和可靠性。
The purpose here was to maximize scalability and reliability.
应用推荐