With PEO content increasing, the friction coefficient decreases greatly.

Research on Synthesis of liner PEO block polymer linear space

线形PEO嵌段物的合成研究

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Study on the Application of PEO in the Aramid 1313 Paper

PEO在芳纶1313纤维纸页中应用的研究

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Study on the Application of PEO in the Development of Aramid Paper

PEO在芳纶纸基复合材料开发中的应用研究

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Do you mean you have to take off for two days?

你是不是说你必须请两天假？

provided by jukuu

On these arguments, gold should do best on the "risk off" days. But as equity markets took fright in September, gold suddenly plunged from a high of$ 1900 an ounce to a brief low of$ 1604.

如此看来，黄金在“规避风险”时期理应表现最佳，但在整个股市受创的九月份，国际金价也从每盎司1900美元高位暴跌至每盎司1604美元。

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Most Chinese workers still cannot take off any days of their own choosing with pay though as Beijing has begun major revisions of its labour laws, there have been proposals to institute leave allowances.

大多数中国工人仍无法根据自己意愿选择带薪休假，尽管随着北京开始大幅修订劳动法，有人提议实行休假制度。

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The legend of his grandfather was that he was restless and would wander off for days; he was an herbalist, learning about plants that could cure and heal.

传说祖父他是不安分的，成天的游荡。他是一个种植或出售草药的人，学习关于可以治愈和痊愈的植物。

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Secondly, a physical copy will provide the means for some well-needed catharsis, allowing you to tick off the days as the exams approach.

第二点，有了打印版，你可以在考试接近期间每天都勾划掉过去的日子，这也是一种非常需要的宣泄方式。

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Burying treasure on a desert island, diving from a boat in the sea, and counting off the days inside a prison cell.

把宝藏埋在荒岛上，从船上跳入海中，在监狱里数着日子过。

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Results: The mean hospital stay and off work days were significantly shorter in the laparoscopy group than in the laparotomy group ( P < 0.01).

结果：腹腔镜组的住院时间、术后恢复工作及误工时间明显低于后者（P

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Here are the top 10 countries which enjoy the most time off ( days off total includes both annual leave and public holidays) ： 1.

全球假期最长的10个国家（假期包括带薪年假和公众节假日）：

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Negotiations with tribal representatives and Gadhafi supporters have been held on and off for days.

数日来，与部落代表和卡扎菲支持者的谈判一直是时断时续。

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Having "off" days is a part of life. They're what make the other days sparkle.

留下一些“喘息”是生活的一部分，它们令你的其它日子更为精彩。

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The asset classes that have done best on "risk off" days have usually been currencies.

在“风险”期中表现最好的资产类别往往是货币。

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How are they hitting it off these days?

他们现在相处得怎样？

provided by jukuu

Ear was sliced off three days earlier.

耳朵三天前被割了下来。

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To keep track of the time, she marked off the days on her calendar.

为了记日子，她每天都在日历上做记号。

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On these arguments, gold should do best on the "risk off" days.

按照这一观点，在萧条时期，黄金本应该表现良好。

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In order to improve the prediction accuracy, according to the different regulation that carries, different forecasting models have been established respectively including workday model ( Monday to Friday), off days model ( Saturday, Sunday) and festival model.

为提高预测精度，根据负荷的不同规律，分别建立工作日（周一至周五）、休息日（周六、周日）以及节日不同的预测模型。

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He knows that his team can no longer afford any off days, or poor performances.

他明白，他的球队在今晚，不能够在浪费时间了，也不能再承受糟糕的表现。

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