But whilst this limiting case might become practically important in future, I know of no example of it hitherto.

但是，虽然这个极限情况在未来可能变得非常重要， 但我迄今还没有这方面的例子。

Thus in the new equilibrium there will be more employment than there would have been otherwise except, perhaps, in some unusual limiting case which has no reality in practice.

因此，在新的均衡中，就业人数将比其他情况下多，除非在实践中不存在的一些不寻常的极限情况下。

Because this is the cosmic speed limit, anything  with mass will have trajectories at some angle in between these limiting cases which is  traditionally referred to as a light cone.

因为这是宇宙速度极限，任何有质量的物体都会以介于这些极限情况之间的某个角度拥有轨迹， 这通常被称为光锥。