They had a very refined apparatus.是什么意思？

They had a very refined apparatus.

他们有一套非常精良的设备。

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

very

adj. 很，非常，恰好是，正是，十足的，特有的；adv. 很，非常，充分，完全；

例句
Most people have very little difficulty in seeing why a Van Gogh is a work of genius.
多数人不难理解为什么凡·高的作品是天才之作。

refined

adj. 精炼的，精制的，经过改良的，举止优雅的；v. 精炼( refine的过去式和过去分词)，精制，使纯净，使文雅高尚；

例句
Oil is refined to remove naturally occurring impurities.
油经过提炼去除天然存在的杂质。

apparatus

n. 仪器，器械，机器，机构，机关，器官；

例句
For many years, the country had been buried under the apparatus of the regime.
多年来，这个国家一直处于该政权机构的高压统治下。