Add fine adjust device for the pressure of foot, without dial on the adjustable screw, more convenience for operation.
压脚压力采用微调装置，压力调节螺钉设有刻度，更加方便操作。
A simple but effective utility to monitor your monthly dial up on line time with a very small foot print.
一个简单而有效的工具来监测您的每月拨号上网的时间与一个非常小的足迹。
The top dial typed presser foot regulator together with presser foot lever assures easier operation;
机顶圆盘式交互压脚，调节旋钮和机身正面压脚提升板手，使操作调节轻松简便；
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