导体 [物理学] electric conductor; conductor; conducting body; prime conductor; conductive body 非导体 nonconductor; 超导体 superconductor; 良导体 a good conductor; 木头是热和电的不良导体。 wood is a poor conductor of heat and electricity.; 导体棒 stub; 导体放电 conductive discharge; 导体球 conducting sphere; 导体元件 conductor element; 导体组 group of conductors
定单与定单复绞辘 spanish burton; whion whip; whip on whip; whiponwhip