在某些行业领域中，开放式解决方案是一个明显的趋势，因为它的价格很接近于机械接触的开关盒方案。
In certain industries a clear tendency to the open solution is noticeable due to a price that comes close to that of the switchbox solution with mechanical contacts.
对于干式开关，接触电阻与接触面积成反比关系。
For dry switches, the contact resistance is inversely related to the contact area.
开关为一薄金属膜桥组成的桥式结构，形成一个SPST并联设置的金属-绝缘体-金属接触。
The switching element consists of a thin metallic membrane, which has the metal-isolator-metal contact with a capacitive shunt switch as SPST.
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