近年来，我国出镜游人数逐年增多，且由于通过银联消费或取款，持卡人无需支付货币转换费，中国银联海外扩张势头迅猛。

UnionPay, which is expanding its overseas network to tap the rising number of Chinese traveling overseas, does not charge for currency exchange services.

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本文阐述了双联滑移齿轮在适当传动出情况下，轴向移动一个齿轮宽度就可以进行变速的可行性及适用场合。

This paper brings out feasibility and applicability to make change drive of double step sliding gear by moving one gear width along axis under conditions of Corresponding ratio of gear.

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研究小组还发现，在COPD患者中残气量和脂联素存在正相关关系。但是，其他呼吸参数未显示出显著相关性。

The team also found that there was a positive correlation between residual volume and adiponectin in the COPD patients. However, no other respiratory parameters showed a significant correlation.

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We've talked about killing a virus by cross-linking it, for example, to make a substance that looks like a vaccine-- looks like a virus but can't replicate.

例如,我们谈论过,通过蛋白交联来杀死病毒,以便制造出一种类似疫苗,应该是类似病毒但却无法进行复制的物质

耶鲁公开课 - 生物医学工程探索课程节选