- 重点词汇
- sheetsn.纸( sheet的名词复数 );被单;一张(通常指标准尺寸的纸);一大片(覆盖物);
- a batch of一批;
- mimeographedv.用誊写版印刷机印刷,油印( mimeograph的过去式和过去分词 );
- ranv. 跑( run的过去式 );移动;(使)流动;(工作等)进行;
- hepron.他,它;一个人;
- offprep. 从…落下;离开;从…去掉;下班;
- 相关例句
A beam of high radiant power will have high divergence.
高辐射功率的光束会有高的发散度.
The electron microscope uses a beam of electrons to produce images at high magnifications.
电子显微镜利用电子束形成高倍影像。
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The papillary light reflex is elicited by shining a beam of light into an eye.
瞳孔对光反射是由光束射入眼睛所产生.
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A beam of light can control the activity of a worm expressing a light-activated protein.
一束光线能控制小虫表达光激活蛋白的活性.
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He visualized what it would he like to ride 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.
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