helicograph

听听怎么读
英 ['helɪkəʊgrɑ:f]
美 ['heləkoʊˌgrɑf]
是什么意思
  • n.

    (画螺旋曲线用的)螺旋规;

  • 学习怎么用

    权威例句

    PENROSE'S SCREW HELICOGRAPH AND SLIDING HELICOGRAPH.
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    Apparatus and method for high energy photodynamic therapy of acne vulgaris and seborrhea
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