After worked over tens years, the sorts of filtration material have been continually increasing with specialization and pertinence in our country.

我国过滤材料经过几十年的研究开发，其种类不断增加，并更具有专用性和针对性。

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These opinions are the scientific conclusion that he unceasingly explores in this domain, also is the summary of his creative experience in the tens years like a day.

这些见解既是他在这个领域不断探索的科学结论，也是他数十年如一日的创作经验的总结。

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For many, the most visible result of their four years is the loan payments, which now average hundreds of dollars a month on loan balances in the tens of thousands.

对于许多人来说，这四年来最明显的结果就是偿还贷款，现在有数以万计的贷款余额，每月需要偿还数百美元。

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They formed little by little tens of thousands of years ago when sea levels dropped.

VOA: special.2010.11.10

And the company grew 80%per year for the first eight years compounded, and 60 % per year for the six years after that, which adds up to tens of billions real quick, as you know.

公司保持百分之八十的年增长,持续了八年，这之后的六年，每年增长百分之六十，正如你们所知，在很短的,一段时间内赚了数百亿。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

These pieces can last for tens of thousands of years.

VOA: special.2009.09.09

We are frightened that once it has gone we won't get anything like it for tens of years.

BBC: Filey School swimming pool closure angers parents

True, we have a lot more choices (often aided by technology) about precisely how we do these things in the modern world but we are still built by a hundred thousand years or so of our own species, tens of millions of years of mammalian evolution, into ending up with slightly different brains and slightly different interests to go along with our very different gonads.

FORBES: How To Increase Business Profits: Go Sexist

Even if we stop emissions now, acidification will last tens of thousands of years.

BBC: Arctic Ocean 'acidifying rapidly'