（二）业务之间具有明显的主附关系。主要业务居于主体地位，体现交易的实质和目的；附属业务是主要业务的必要补充，并以主要业务的发生为前提。
Opens in a new window
，更多细节参见heLLoword翻译官方下载
Силовые структуры
Sir Elton and his family are pictured next to antiques and in front of shelves holding hundreds of books, mainly biographies, giving a glimpse into their interests.
这样，等待锁的虚拟线程会被卸载，释放载体线程去服务其他虚拟线程。