The conceptof indoor farming is not new, since hothouse production of tomatoes and other produce has been in vogue for some time.
室内种植的概念并不新鲜，因为温室种植的西红柿和其他农产品已经流行了一段时间。
2
BMW has announced that this concept will not be produced, but its design and technology will be the basis of future production models.
宝马公司声明这个概念并不会做成实体车，但是它的设计以及技术创新将作为未来产品的奠基。
3
Its main concept is the use of dependency injection and aspect-oriented programming to simplify and smooth the transitions from development to testing to production.