在这个系统的中心圆洞中放置一枚次临界的球形可裂变物质。
In a hole in the center of this system is placed a subcritical sphere of fissionable material.
他们选用这种方式进行探究是因为自我组织临界的另一个特性是：平均来说，每一次触发都是一个接一个的。
They followed this line of enquiry because another property of self-organised criticality is that each event, on average, triggers only one other.
根据监控数据显示，今年伦敦市空气粉尘浓度第36次达到危险临界值，成为了欧洲污染最严重的城市之一。
The City of London has been found to be one of the most polluted places in Europe after monitoring equipment recorded dangerous levels of minute particles for the 36th time this year.
应用推荐