ideal circular symmetry fiber理想: ideal圆: round; circular; spherical对称: symmetry; symmetrical光纤: fibre-optical圆对称光纤: circuit symmetric fiber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:理想圆对称光纤,即可在微信中查询翻译