Static electricity: Pertaining to electric charges at rest. It may be intentional charging or of friction in low humidity environment.

静电：有关静止形态的电荷的情况。静电在湿度低的环境下，因磨擦而产生；或有目的使它产生。

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The trick was to connect the ball to the rest of the mouse at the two points where there was the least friction right where his fingertips had been, dead center on either side of the ball.

NEWYORKER: Creation Myth

Even in matters of pure physical reality, we depended on a friction between our basic faculties of sensation, his and mine, and we understood now that the rest of the afternoon would be spent in the marking of differences.

NEWYORKER: Midnight in Dostoevsky

But if it is simply bolted on to add transactional friction to prevent churn (through recurring billing), it will be hard to lined up the rest of the business model to address the other issues previously mentioned.

FORBES: New Rules For E-Commerce