尽管条件很差，人们还是花了好几个世纪的时间尝试到达北极。
Although conditions were very poor, people tried for many centuries to reach the North Pole.
不具备条件也应想办法控制、限制嫌疑人等待警方到达。
If notpossible, try to control and limit suspects to wait for police.
他到达的时间要视天气条件而定。
在良好的光收集条件下，约30%的荧光量子可以到达光阴极。
With good light collection, about 30% of the luminescence quanta may reach the photocathode.
在良好的光收集条件下，约30%的荧光量子可以到达光阴极。
With good light collection, about 30% of the luminescence quanta may reach the photocathode.
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