每个交易日结束后,未结头寸根据当前利率自动向前滚动(rolled forward)进行递延结算。未结头寸根据伦敦黄金市场定价公司的午后定盘价收取保证金和逐日结算;每笔头寸需要通过一笔方向头寸进行平仓。
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The truck quietly rolled forward and demolished all the old wooden fencing.
卡车静静地缓慢前行,毁了所有旧木栅栏。
The table space (or the entire database) must be rolled forward before the table space can be used.
在使用表空间之前,必须前滚该表空间(或是整个数据库)。
If the roll forward set has not been rolled forward far enough to be consistent with the database, the undo phase cannot occur.
如果前滚集前滚得不够远,无法与数据库一致,则不会出现撤消阶段。
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