curtate hypocycloid短: short; brief幅: width of cloth内: inner; inside; within长幅内摆线: prolate hypocycloid内摆线: hypozykloide hypocycloid下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:短幅内摆线，即可在微信中查询翻译
