Dirac pointed out that one of the only ways to measure a particle's position is by bouncing a photon off of it, and seeing where and how that photon lands on a detector.
狄拉克指出唯一的方法就是通过反弹一个光子，并观察它在检测器上的位置和轨迹来测量一个粒子的位置。
The one-off price increase therefore appears to be a stopgap measure made by an administration that is betting falling international prices will eventually allow it to loosen its controls.
因此，这种一次性涨价似乎是官方采取的权宜之计。官方是在下注国际油价最终会下降，可以让它放松控制。
To measure the flame lift-off length and evaluate its asymmetry, an evaluating coordinate system is built which contains two planes and one Angle.
然后建立了一个评价火焰浮起长度及其不对称性的评价平面系，该评价平面系包括两个平面和一个角度。
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