a rare occurrence的意思|示意

Now I have to say, 'But when you have these fluctuations, which is not a rare occurrence, you can have substorms going off once an hour.'

但现在我不得不说，‘只要有能量的波动变化(其实这些变化是通常存在的)，每个小时都会发生一次亚暴。’

Even if someone did, it would be such a rare occurrence that you would never want to design your entire customer relations philosophy around it.

即便是有人这样做了，那也是极少数的案例，你不能依据这种极少数的案例来设计你的整套客户关系管理方案。

Her two boys and two girls were healthy and doing well after being born July 6 by Caesarean section in what doctors said was a rare occurrence of multiple births.

7月6日，玛格达勒诺剖腹产生下一对男婴和一对女婴，目前，四个孩子都很健康，一切正常。医生说，这在多胞胎中还是很少见的。

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。

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。

Conclusion. This case report discusses the rare occurrence of multiple lumbar pedicle fractures and pars interarticularis (spondylolysis) fractures in a patient with osteopetrosis.

结论：本文就一例少见的复发性多处腰椎椎弓根骨折伴椎弓峡部骨折的石骨症病例的相关问题进行了讨论。