励磁机的英文：
(field) exciter
exciting dynamo
exciter set
magnetizing exciter
initiator

参考例句：

A rotating commutator on the dc machine, used as an exciter, was a common means for achieving rectification in the past.
在过去,直流励磁机上的旋转整流子是用作整流的普遍措施。

field是什么意思：
n. 原野，田地；运动场；领域，专业；实地，野外
adj. 实地的，野外的，野战的；野生的；田间的
v. 接球；巧妙回答

A rectangular field is to be subdivided into eight equal fields to sell.
这块矩形的土地被划分成八等分再出售。

Scatter seeds on the fields/scatter the fields with seeds
在田里播种[把种子撒在田地里]

They leveled a field yesterday.
他们昨天平整场地了。

exciter是什么意思：
n. 刺激者,激励者,兴奋剂

a driver; an exciter
激励器

It was an exciting finish.
比赛结尾是激动人心的。

It was such an exciting game.
那场比赛真是精彩刺激。

exciting是什么意思：
adj. 使人激动的，刺激的
v. excite的现在分词；刺激

a driver; an exciter
激励器

It was an exciting finish.
比赛结尾是激动人心的。

It was such an exciting game.
那场比赛真是精彩刺激。