Because the base station power amplifiers have a low efficiency due to the back-off operation, efficiency enhancement techniques become very important.
但由于基站功放工作在一个很深的回退状态，功放效率增强技术就变得非常重要。
The U.S. Defense Secretary said no decision has been made to call off the operation, dubbed Caring Response, but he said it may be matter of days before the ships are called back.
盖茨说，目前还没有决定取消这个名叫“关怀反应”的行动。 不过，他说，也许再过几天这些军舰就将被撤回。
Whereas real stars - you think of Tiger Woods - he's been off golf for months, comes back after that knee operation and there he is, he wins that tournament last week.
人们脑海中真正的巨星-毋庸置疑是泰格伍兹，他已经离开高尔夫球场好几个月了，经过一个膝部手术后回归，上周正是这样的一个伍兹赢得了冠军。
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