France Info radio quoted an airport authority source as saying that its absence from the radar could be a question of a transmitter failure, but that this would be a very rare occurrence.

法国资讯电台援引一名机场管理局消息人士的话说，飞机从雷达上消失可能是发射失败的问题，但是这种现象是非常罕见的。

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At the highest level of profitability, perhaps a very rare occurrence, we might even be able to place our exit stop at the previous day's low to protect the great profit we have accumulated.

如果获得大到不能再大的赢利水平后，这是一种极其少见的情况，我们甚至可以把止损点放在前一天的低点处以保护我们已累积起来的巨额盈利。

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