conchoidal蚌线: conchoid; conchoidal curve的: 4次方是 The fourth power of 2 i ...蚌线: [数学] conchoid; conchoidal curve圆蚌线: circular conchoid抛物蚌线: parabolic conchoid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:蚌线的，即可在微信中查询翻译
