精矿的英文：
preparation concentrate

preparation是什么意思：
n. 准备；准备工作；制剂

exercising in preparation for strenuous activity.
为紧张活动而做的准备活动。

How do you prepare them?
你们怎样调制它们？

Hope for the best and prepare for the worst
抱最好的希望,做最坏的打算

Have you prepared church ornament?
你们准备好教堂礼拜用品了吗？

The food was plain but well prepared.
这些食物很简单，但烧得很好。

concentrate是什么意思：
v. 集中；聚集；全神贯注；浓缩；富集
n. 浓缩；浓缩物

concentrate troops at a strategic point
集中兵力于战略重点

Samarium europium gadolinium concentrate
GB/T8751-1988钐铕钆富集物

Ansar Concentration (detention) Camp
安萨尔集中（拘留）营

Industrial development is concentrated in the Northeast.
工业发展集中在东北地区。

It consists of a pair of concentric cylinder.
它由一对同轴的圆筒组成。