For even if the G20 countries are a strange ad hoc selection, initially brought together by the Asian financial crisis in 1997, they represent a whole new element in the world order.

因为即使G20成员国是一个奇怪的无规律组合，最初因为1997年的亚洲金融危机而汇聚到一起开会，但它们在世界秩序中代表着一个全新元素。

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This component walks you through creating an AD hoc composite application based on the current bookmark selection.

通过该组件可以基于当前的书签选择创建临时的复合应用程序。

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Selection and design of the routing protocol is the key of aeronautical Ad Hoc network.

航空自组网的关键技术在于路由协议的选取和设计。

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Membership of most Public Bill Committees and ad hoc committees of this kind is normally decided by an outfit called the Committee of Selection, which is essentially a clearing house for lists drawn up by the various whips offices.

BBC: Tory manoeuvrings