在科罗拉多州，尽管有数百万美元的逆差，丹佛公共图书馆已经几乎消灭了固定比率的罚款。
In Colorado, despite a multimillion-dollar deficit, the Denver Public Library has practically done away with fixed-rate fines.
特点：油浸式凸轮连杆机构，地梳固定不摆动，带耳沉降片穿防闭钢丝，送经箱体分别控制二辊罗拉积极送经。
Characteristics: Oil soaking CAM and connecting bar system; sinker with an eyelet to take unable-closed steel wire; let-off boxes control two rollers for positive let-off motion.
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