查询词典 a beam of light

It's kind of like the way a lens magnifies a beam of light.

它是一种象一种能放大一束光的方法。

This is what you see when you break up a beam of light with a prism.

这就是你用棱镜分解一束光时所看到的东西。

A beam of light generated by a laser .

由激光器发出的一束光。

When it's dark, in a vacuum, if a person shines a beam of light straight across your eyes, you won't see it.

当黑暗时，在真空中，如果有人将一束光直射进你的眼睛，你就看不见它。

A device for projecting a beam of light .

用来投射光束的装置。

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。报章也是课堂辅助教材的主要来源。来源可靠的证据。

A small flay, attached to this body, intercept s 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。

A small flay , attached to this body, intercepts a beam of light coming from a source and directed to a photocell

到中国译典经典版本中查找关于flay的最新解释和例句。。。。

"Photocells are used in control systems, where interrupting a Beam of light opens a circuit, actuating a relay that supplies power to a mechanism to Bring about a desired operation, such as opening a door or setting off a Burglar alarm."

光电管用于控制系统中，在遮断光束时，系统就打开电路，从而开启继电器，为所需要的动作提供动力。

"Photocells are used in control systems, where interrupt ing a beam of light opens a circuit, actuating a relay that supplies power to a mechanism to bring about a desired operation, such as opening a door or setting off a burglar alarm."

光电管用于控制系统中，在遮断光束时，系统就打开电路，从而开启继电器，为所需要的动作提供动力。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。