ad hoc working group的用法和样例：
- The final terms of the framework provisions would be settled after consideration by an ad hoc Working Group (see paragraphs 5 and 8 in the main body of this document).
- Instead, the Delegation suggested that an ad hoc Working Group could be established to look at the "Implementation Mechanisms" of a Development Dimension for WIPO.
- It supported this approach and welcomed the convening of an ad hoc Working Group to discuss further details concerning the proposal to establish a digital access service for priority documents.
- Ad Hoc Working Group on Mathematical Fire Modeling
- Ad hoc working group on small arms;