tactus

基本解释

The arcing combines the internal gas and the vapor of the materials from which the relay is constructed, especially plastics, to deposit an insulating layer on the con tactus.
电弧与内部气隙及继电器所用材料（尤其是塑料）的蒸汽相结合，会在触点上形成一层绝缘层。

We had opportunity to catch Tactus at SID earlier this year, though with news that the Tactus keyboard was new and improved for CES we had no choice but to take a quick peek.
ENGADGET: blogger-avatar
Well, Tactus has been sampling some new coating materials attempting to reduce glare -- and succeeding -- and to cut down on the controller's size by 70 percent and in so doing also doubled up the speed that the keyboard activates.
ENGADGET: blogger-avatar