一次绕组；原绕组
1. 初级绕组：点火线圈实际上是一个变压器,主要由初级绕组(primary winding),次极绕组(secondary winding)和铁芯组成. 断电器是一个凸轮操纵的开关. 断电器凸轮由发动机配气凸轮驱动,并以同样的转速旋转,即曲轴齿轮每转两圈,凸轮轴转一圈,
2. 一次绕组：primary voltage,一次电压 | primary winding,一次绕组 | principal period of calorimetric test,量热实验的主期
3. 原绕组：主价 primary valence | 原绕组 primary winding | 质数 prime number
4. 初级线圈：primary winding 初级绕组初级线圈 | primary winding 初级线圈 | primary 初级的
noun
1. coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit
e.g. current through the primary coil induces current in the secondary coil
Synonym: primary coil primary