The drawback is the need for collision handling which will be very expensive if collision are frequent.

缺点是如果冲突时常发生时，解决冲突所需的花费是昂贵的。

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The hub or repeater simply repeats an incoming signal on all ports and also sends the jam signal to all ports if there’s a collision.

简单来说，中继器将正常情况下收到的信号，和数据碰撞时产生的拥塞信号重复发送到所有的端口。

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The head trauma from this type of abuse is similar to the damage that would occur if a child were in a major car collision or if the car rolled over.

这种类型的脑外伤对于孩子来说类似于经历了一次大的汽车碰撞或者翻车。

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If the vehicle in the unfortunate circumstances of a collision, has to be able to maintain the security of the hydrogen which means more mass, which means a lot of the efficiency is being squandered What's the environmental impact of hydrogen production?

如果车辆,在碰撞中发生了不幸，要仍然能够保持氢气的安全性的话,意味着需要更多的质量，也就是说大部分效率被浪费了,制氢对环境有什么影响呢？

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Over the next couple of years, such sensors will expand their range, to check for obstacles entering a car's blind spots and issue warnings to drivers if a collision seems imminent.

ECONOMIST: MONITOR

In the case of the Russian satellite in January, "it would have been very difficult to tell there had been a collision if it hadn't been for the fact that somebody was operating the satellite and noticed a collision, " said Kelso.

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Small clouds of starlings charge onto the scene from offstage as if bent on collision, then integrate perfectly and instantly with the larger formation.

ENGADGET: Editorial: Tech is a flock of starlings