副线圈的英文：
secondary coil
adj. 第二（次）的；第二位的，次要的；中等教育的，中学的；间接的；继发性的
n. 副手，代理人；次要的人（或物）；卫星
To contain as a secondary or subordinate element.
含有作为次要的、附属的成分而包含
lodging for occasional or secondary use.
偶尔用到的临时寓所。
secondary recycle isobutane
再循环异丁烷
The secondary planet is send by rocket.
这颗卫星是由火箭发射的。
lignin is a characteristic component of secondary walls
木质素是次生壁成份的特征。
n. 线圈；圈，卷，盘；纷乱
v. 盘绕，卷；成圈状
To coil or fold or cause to coil or fold in overlapping whorls.
卷绕(使)盘绕起来或(使)卷起成重叠的螺旋状物
moving coil cartridge
动圈式唱头
In rings; coiled or convoluted.
环绕的；盘绕的或卷曲的
The birds are entangled in the coil of a net.
鸟被缠在网圈里了。
The burnt coil should be renewed.
烧穿的线圈应换新的。