the beam

• The position of the last crack is marked before unloading the beam .
  标出最后一条裂纹的位置，然后卸去载荷。
• The beam of flashlight diverges, but it can be refocused with lenses .
  一个发散的闪光灯束可以用透镜重新聚焦。
• In general, the top surface of the beam is acted upon by transverse loads .
  横向载荷作用一般认为在梁的顶面上。
• For a wiggly-line trace, the beam is focused on the scope face at a point .
  对于波形道，光束在荧光屏面的一点上聚焦。
• The beam does not spread out appreciably, even at large distance from the source .
  它的光束，即使离光源极远，也不显著扩散。
• Evidently the wave properties of light are not attributable to the beam acting as a whole .
  显然光的波动性质不能归给光束整体。
• The beam scans a circular area in the form of a sector which sweeps around and around .
  这波束周而复始地呈扇形扫视一个园形区域。
• As a rule of thumb, the minimum device feature is about 4 times the beam diameter .
  一般来说，最小器件图形大约是电子束直径的4倍。
• The german pilots followed the beam as the german people followed the fuehrer .
  德国驾驶员之追随射束，一如德国人民之追随他们的元首。
• As a whole, the beam will therefore impart no total angular momentum to a target .
  因此，整个说来，这种光束将不传给靶任何总的角动量。