a beam of light
一束光
Reflection of a beam of light on the diaphragm falls on a phototransistor.
经膜片反射的光束照射到光敏管上
The effects produced when a beam of light falls on a crystal for varying angles of incidence can be readily visualized by a geometrical representation.
投射到晶体上的光束，由于入射角的变化所产生的不同效应，可以很方便地用一种几何图形体直观地显示。-
a beam of light passing through it is brought to a point or focus.
光束通过它时能够汇聚成一点。
a light source with reflectors that projects a beam of light in a particular direction.
装有能投射到某一特定方向一束光的反射镜的灯。
A small flay, attached to this body, intercepts a beam of light coming from a source and directed to a photocell.
附在该物体上的光罩截取对着光电管的光束。
Do you see a beam of light coming through the thick fog?
你看见浓雾中射出的一道光线吗？
A beam of light produced by a laser can weld metals.
激光器发生的光束可以焊接金属。
There was no light in the room when Hung-chien pushed open the door, only a beam of light from the corridor shining into the room.
鸿渐推开房门，里面电灯灭了，只有走廊里的灯射进来一条光。
a beam of light generated by a laser.
由激光器发出的一束光。
a plastic film that can polarize a beam of light; often used in sunglasses to eliminate glare.
可以使光束偏振的一种塑料薄膜；使用时通常戴着太阳镜来挡住耀眼的光。
[ 本帖最后由 lorespirit 于 2008-7-4 11:42 编辑 ] |
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a beam of light一束光
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