The maximum tensile strength retension and elongation ultimate retension of EPDM vulcanizate after aging were obtained by adding 0.5 phr of TMPTA;

From the paper, we can get a conclusion, the bad retension and stability of complete dentures is a familiar phenomenon in the clinic, it is influence by various factors.

从中我们可以得出结论，全口义齿的固位和稳定不良是临床上的一种常见现象，受多种因素的影响。

The incidence of retension of secretions was about 12%.

其次为分泌物潴留，约为12%。

To compare the effects of high retension enema with western and herbal medicine in treating postoperative patients following general peritonitis.

目的：比较中药高位保留灌肠配合西医治疗急性弥漫性腹膜炎与单纯西医治疗疗效的差异。

Cytokine-inducing substance retension by a new polyethersulfone membrane dual layer dialyzer

不对称双层聚乙醚硫胺膜透析器对透析液中细胞因子诱导物质的屏障作用

Urinary retension was found in 17 patients ( 40.5%), who needed catheterization.

17例（40.5%）有尿潴留，需要导尿。

Conclusion: Compared with western medicine the effect of herbal high retension enema was favorable.

结论：中药高位保留灌肠配合西医治疗急性弥漫性腹膜炎疗效较好。

Porterfield : Does writing come naturally for you, or do you have to work at it?

Porterfield:你认为自己有写作天赋吗, 还是要靠自身努力?

Why don't you lay that problem aside for a while and work at it later?

你为什么不先把问题放在一边过会儿再说?

Whatever you to do, you should commit to and really work at it.

不管决定做什么, 我都必须投入,真正去做.

You will never become good at tennis, unless you work at it earnestly.

除非你努力下功夫,否则你将永远打不好网球.

Choose a cause bigger than you are and work at it in a spirit of excellence.

因此,要选择一项比你自身更大的事业,以非凡的精神为它二.作.

Most people want to improve themselves, but no too many are willing to work at it.

大多数人要改造自己, 但不多的人愿意下功夫.

You can't accomplish your goal of mastering the language unless you work at it for years.

除非你学上几年,否则你不可能实现掌握汉语的目标.

There is no easy way round the difficulty; we shall have to work at it.

这个难题很难回避, 我们只得研究并解决它.

Sure, you'll have to work at it.

当然, 你得不断工作.

Sam Altman, president of the tech incubator Y Combinator, recently proposed to fund research into U.B.I. The firm has received thousands of applications for research funding, Mr. Altman said;

孵化技术创业公司的Y Combinator公司总裁萨姆·奥尔特曼（Sam Altman）最近打算给针对UBI的研究提供一些资助。奥尔特曼表示，公司已经收到数千份研究资金申请；

I also spoke with Sam Altman, the president of Y Combinator, one of the best-known providers of first-step seed money for tech start-ups.

我还和Y Combinator公司总裁萨姆·奥特曼（Sam Altman）交谈过。Y Combinator是为科技创业企业提供起步阶段种子资金的最知名公司之一。

Earlier this year, Y Combinator's president, Sam Altman, said he thought the message board might be with$ 500 million.

今年上半年，Y Combinator的总裁萨姆o阿尔特曼就曾说过，他估计这个留言板上的用户群体整体价值可能有5亿美元。

Peter Thiel, a start-up investor and Facebook director, said: "Silicon Valley is quite oblivious to the degree to which this crescendo of concern is building up in Europe. It's an extremely important thing and Silicon Valley is underestimating it badly."

Facebook董事、风险资本家皮特•泰尔（Peter Thiel）说：“硅谷没有察觉到欧洲不断加剧的担忧情绪。它非常重要，而硅谷却严重低估了它。”

There, a chance encounter with a co-founder of Napster ( whom they let crash in their flat), helped them land a meeting with Peter Thiel, a valley financier and co-founder of PayPal, the online money-transfer system.

在那里，与napster一位联席创始人（他们曾让他在他们的公寓里留宿）的偶遇，帮助他们赢得了与硅谷融资家、在线转账系统paypal联席创始人彼得塞尔（peter thiel）的会面机会。