beam of light
英 [biːm ɒv laɪt]
美 [biːm əv laɪt]
光束
英英释义
noun
- a column of light (as from a beacon)
双语例句
- In electron microscopes a beam of electrons instead of a beam of light is directed onto the specimen.
在电子显微镜下，常使用一束电子光而不是普通光线来为标本照明。 - A beam of light generated by a laser.
由激光器发出的一束光。 - This opens the possibility of a new type of cross modulation, where a beam of light at one of the absorption frequencies can turn on or off the light of the other.
这就可能制造出新型的交叉调制器，一束有特定吸收频率的激光能打开或关闭其它的光。 - The energy source for laser beam machining is a highly concentrated beam of light.
激光切削的能量来源于一束高聚焦光。 - He visualized what it would he like to ride on the end of a beam of light.
他做了“思想实验”。他想象自己可以跑的像光一样快。 - 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。 - He directed the tiny beam of light at the roof.
他把那一小束光对准了屋顶。 - 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 scientist in the blue ship sees his beam of light go straight up and come straight down.
蓝色飞船里的科学家看到自己的那束光线从下面垂直地射到上面，然后又垂直地返回到下面。 - 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。