取得使用此类别之属性的宣告集合。
一些电子设备中内嵌的知识产权也许并未取得使用授权。
The intellectual property embedded in some devices may not, ahem, have been paid for.
选自当代参考书里的部分文章主要为易读、有趣且容易取得使用，大多数出自颇具学术品质之平装本。
A brief selection of recent, useful books chosen for readability, interest, and ease of access, mostly in paperback editions, as well as for quality of scholarship.
应用推荐