Side and bottom contact shoes are spring loaded to provide the necessary contact force.
边触式和下触式集电靴装有弹簧用来提供所需的接触压力。
For more information, contact the companies and websites listed at the bottom of this article.
更多资讯，请联络有关公司和网站列在底部的这篇文章。
In our work, we have made two structures device: top-contact and bottom-contact.
实验中，我们制备了两种不同结构的器件：顶电极结构和底电极结构。
The bottom surface (5) is designed to contact a handle (b).
该底面(5)设计用于与手柄(B)接触。
The bottom surface (5) is designed to contact a handle (b).
该底面(5)设计用于与手柄(B)接触。
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