Beneficiation removes clay and silica to considerable extent.是什么意思？

Beneficiation removes clay and silica to considerable extent.

富集操作除去粘土和硅石达到相当高的程度.

beneficiation

n. 选矿，富集；

例句
A beneficiation process is used to increase the purity to 95 % or more.
可采用富集方法将纯度提高到95%或更高.

removes

v. 开除( remove的第三人称单数 )，去除，脱去（衣服等），移走；

例句
The toothbrush gently removes plaque without damaging the gums.
这种牙刷可以温和去除牙菌斑而不损伤齿龈。

clay

n. 黏土，泥土，（相对于灵魂而言的）人体，肉体，似黏土的东西，克莱（男子名， Clayton 的昵称）；vt. 用黏土处理；

例句
...a clay water jug decorated with painted arabesques.
绘有阿拉伯式花饰的泥制水罐

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

silica

n. 硅石，二氧化硅，硅氧；

例句
Alkali | aggregate reaction ( AAR ) may be divided into two kinds: alkali | silica reaction ( ASR ) and alkali carbonate reaction ( ACR ).
碱集料反应 ( AAR ) 可分为两类, 即 碱硅酸反应 ( ASR ) 与碱碳酸盐反应 ( ACR ).

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

considerable

adj. 相当大（或多）的，该注意的，应考虑的；

例句
Despite considerable pain she has been getting out and about almost as normal...
尽管还很痛，她已经基本上行动如常。

extent

n. 程度，长度，广大地域，扣

例句
Expenses are deductible only to the extent that in aggregate they exceed 7 percent of gross income.
只有在消费总额超过总收入的7%时才可免税。