求翻译：也就是文章中提到的，要在将丰富的感觉材料加以"去粗取精、去伪存真、由此及彼、由表及里"的改造上做工夫。是什么意思？

That is mentioned in the article, to sense the rich to "Qucuqujing, Quweicunzhen, from here, outside to the inside" to do the transformation work.

It is also referred to in the article, you have to be "rich in material sense, eulogize dross, the resulting and he, by the transformation of the table and the "do something more.

Also will be in the article mentions, wants the feeling material which will enrich to perform " to discard the dross and select the essential, to eliminate the false and keep the true, from one to the other, and in the " transformation makes the free time by the table.

That is mentioned in the article, would enrich the sense of material you want to be "discard the dross and select the essence, and get rid of, and he, and from the outside to the inside" of reconstruction efforts.

That is mentioned in the article, would enrich the sense of material you want to be "discard the dross and select the essence, and get rid of, and he, and from the outside to the inside" of reconstruction efforts.