helicograph
英 ['helɪkəʊgrɑ:f] 美 ['heləkoʊˌgrɑf]

n.

（画螺旋曲线用的）螺旋规；

权威例句

PENROSE'S SCREW HELICOGRAPH AND SLIDING HELICOGRAPH.
Tools of the Imagination: Drawing Tools and Technologies from the Eighteenth century to the Present
507 Mechanical Movements - Brown Part 10 pptx
Analysis of optimality in natural and perturbed metabolic networks
Low‐Frequency Auditory Characteristics: Species Dependence
A structural census of genomes: comparing bacterial, eukaryotic, and archaeal genomes in terms of protein structure 1
Low-grade B cell lymphomas of mucosa-associated lymphoid tissue (MALT-type) require CD40-mediated signaling and Th2-type cytokines f...
Allelopathy in agroecosystems: an overview.
Composition Comprising Vitamin B12 and Acid Reducing Agent and Uses Thereof
Apparatus and method for high energy photodynamic therapy of acne vulgaris and seborrhea