Curve Type

Following options are available under 曲线:

稳定剩余.	Curve type even with rest
直线 J-曲线 r-曲线 S-曲线内凹折线外凸折线	Curve type straight, j curve, r curve, s curve, twisted inwards or outwards
均匀收针.	Curve type Fair Isle
预设收放针	Preset Stepping curve type
用户自定义.	User Defined curve type