但研究发现，当手机使用人数达到1亿这个临界数量时，手机降低交通致命率的作用就消失了。
However, this reduction in fatalities disappeared once the Numbers of phones in use reached a "critical mass" of 100 million, the study found.
在通常的全动力应用下，内核里中子的产量是稳定的（保持一个数量不变），反应器处于临界状态。
During normal, full-power operation, the neutron population in a core is stable (remains the same) and the reactor is in a critical state.
最新的评估报道宣称，“公开的场景表明现在轨道上的残骸的数量已经达到了临界点。”
The latest evaluation report says: 'Scenarios uncovered conclude that the current orbital debris environment has already reached a 'tipping point'.
临界负荷主要取决于到发线数量和驼峰作业时间变异系数。
Critical load is mainly determined by the number of receiving and departure track and coefficient of variation of hump-working time.
随着客户购买和制造暴涨，数量过多的库存和客户需求的解决方案来管理这一过剩已达到临界质量。
With customer purchasing and manufacturing skyrocketing, the volume of excess inventory and customer demand for solutions to manage this excess is reaching critical mass.
从能量角度用数量级估计的方法分析数种重要的感度试验数据，提出临界热能密度的概念。
Data on several important sensitivity tests are analyzed again by a method of magnitude order estimation, then a concept on the critical thermal energy density is formulated.
超过一个临界点之后，随着汽车数量的累加，汽车提供的不再是便捷，而停滞。
After a point, as their Numbers multiply, automobiles provide not mobility but immobility.
超过一个临界点之后，随着汽车数量的累加，汽车提供的不再是便捷，而停滞。
After a point, as their Numbers multiply, automobiles provide not mobility but immobility.
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