您同时需要通过HTML/CSS创建网页，您的设计作品必须具备实用性。
You will also be required to build web pages in HTML/CSS. Your designs should also factor in usability design.
要获得专利，发明必须具备新颖性、实用性和非显易见性。
To be patentable an invention must be novel, useful and non-obvious.
电镀锡早在1843年就提出了第一个专利，1930年之后才具备工业实用性。
Tin plating as early as 1843 puts forward the first patent, and after 1930 have industrial practical.
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