concentrator是什么意思

音标:英 ['kɒnsentreɪtə]美 ['kɒnsenˌtreɪtə]

集中者, 浓缩器, 选矿机[计] 集线器, 集中器

An apparatus for the separation of dry comminuted
ore, by exposing it to intermittent puffs of air.

concentrator的用法和例句：

1. Come on, kid, concentrate. I can't concentrate.

孩子 集中一点 我没法集中

2. Right. Intense, concentrate, the conditions are very extreme, so these ingredients has to be protected by themselves, so they are then full of proteins and they are concentrated by flavor and taste.

是 味道强烈集中 因为条件很极端 所以这些材料本身需要被保护好 它们富含蛋白质 而且味道浓郁

3. So we know that when we reach an oxygen concentration of about 19.5%, as opposed to its normal 20.9% in the atmosphere, we'll have our ideal 7% concentration of alcohol vapor and that's going to give us our best shot.

所以当我们测到室内氧气浓度降低到19.5% 而非大气中通常的20.9% 就说明酒精蒸气浓度达到了理想的7% 这样就能达到最佳的爆炸效果了

4. I'm done. I can't concentrate. I can't do this.

我好了 我没法集中精力 我做不到

5. You have to concentrate on my voice.

你得把注意力集中在我的声音上

6. They're not concentrated, so she won't overdose.

这些没有经过浓缩 她不会用药过量的

7. I was concentrating on not having a drink.

我在集中精力不让自己喝酒

8. But, no, I can't concentrate with him around.

但是不行 他在身边我没法集中注意力

9. I can't concentrate with all this talking.

人人都在说话 我没法专注

10. She can't concentrate on her studies at all.

她完全不能集中注意力在学习上