这一点是指其身体上的发光斑或发光点.This may show as luminescent blotches or spots on the body.我们将它称为光束的 “ 光斑尺寸 ”.We will consequently refer to it as the beam'spot size ".如果孔是圆形的, 那么在屏幕上出现一圆形光斑.If the aperture is circular, a circular...
A number of local people have been arrested for trying to obstruct lorries loaded with logs.一些当地人因试图阻止满载原木的卡车通行而被逮捕。The defences are intended to obstruct any advance by tanks and other vehicles.这些防御工事用于阻止坦克等车辆前进。Claire p...