此刀头主要由导光管、聚焦透镜、可伸缩接触杆以及手柄组成。

The knife bit mainly is composed of a light pipe, a focusing lens, a telescopic contact lever and a handle.

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他于1994年在一种称为秀丽隠杆线虫的小型线虫中试验了这一想法，标示出接触受体是如何在整个虫体中分布的，并据此发表了一篇文章。

He tested his idea in a tiny nematode worm called Caenorhabditis elegans and, in 1994, published a paper showing how touch-receptor proteins are distributed around this worm.

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这一技术已被广泛地用于评估接受或回避某种刺激的本能趋向。 移掉操纵杆与回避相联系，而将操纵杆拉向身体一侧则表明其渴望更近地接触刺激。

Moving the joystick away is associated with avoidance, while drawing it towards the body indicates a desire to bring the stimulus closer.

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