biconical reflector双: two; twin; both; dual锥形: taper; cone; cone-shape反射器: dish; reflector锥形反射器: conic reflector双锥形反射镜: biconial reflector; biconical reflector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:双锥形反射器，即可在微信中查询翻译
