江西·崇仁第三届麻鸡美食文化旅游节--江西频道--人民网

百度 记者从会上获悉，在“一带一路”倡议下，东旭光电将与多国政府及企业携手，就石墨烯智能电采暖、石墨烯大功率LED智能照明和新能源汽车推广应用，以及智慧城市物联网产业等领域展开合作，构建集智慧能源、智慧城管、智慧安防、智慧通讯、智慧出行等于一体的物联网智慧城市管理平台。

Graceful degradation is a design philosophy that centers around trying to build a modern website/application that will work in the newest browsers, but falls back to an experience that while not as good still delivers essential content and functionality in older browsers.

Polyfills can be used to build in missing features with JavaScript, but acceptable alternatives to features like styling and layout should be provided where possible, for example by using the CSS cascade, or HTML fallback behavior.

It is a useful technique that allows Web developers to focus on developing the best possible websites, given that those websites are accessed by multiple unknown user-agents. Progressive enhancement is related but different — often seen as going in the opposite direction to graceful degradation. In reality both approaches are valid and can often complement one another.