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。
Side and bottom contact shoes are spring loaded to provide the necessary contact force.
利用永磁铁间同极相斥的特性，构造了用于汽车减振系统的一种非接触、非线性的磁力弹簧。
Using the character of permanent magnetic iron, the magnetic spring was constructed with the character of non-connection and non-linear.
多股导线在其承受接触压力之处，不应使用钎焊将其焊在一起，除非由弹簧接线端子提供接触压力。
Stranded conductors shall not be consolidated by soldering where they are subjected to contact pressure, unless the contact pressure is provided by spring terminals.
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