The third section outlines some exist of problems in the studies of porous plastic optical fiber probes and comes up with their possible solutions.

阐述了目前多孔塑料光纤中存在的主要问题及其解决的可能途径。

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Some people believe that there may not exist a stress gap between men and women.

有些人认为，男性和女性之间可能不存在压力差距。

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Some desalination plants exist where feasible, but they are costly to run and can need constant repair.

在可行的地方有一些海水淡化厂，但它们的运营成本很高，并且需要经常维修。

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The band's music is considered so influential that some critics say punk rock would not exist without the Stooges.

VOA: special.2010.03.19

There will need to be some organizing structures or frameworks or standard bodies that exist to coordinate that.

需要组织结构,框架或者标准,来协调这些网站。

麻省理工公开课 - 媒体、教育、市场课程节选

The Hobbesian state will always exist in a world of hostile other states, unregulated by some kind of higher law.

即国家总是存在于,一个充满敌意的世界里，而且总是被更高的法则约束着。

耶鲁公开课 - 政治哲学导论课程节选

Some exist to advance conservative ideology, and some exist to advance liberal ideology.

CNN: The real risk of the IRS scandal

Some concerns exist that 2013 will follow the pattern set in the last two years: strong growth in the beginning fades in the summer months.

FORBES: U.S. Added 157,000 Jobs In January; Unemployment Rises To 7.9%

There are no set rules, but some conventions exist.

FORBES: J.C. Penney: To Avoid Wild Stock Swings, Quarterly Reports Shift To Afternoon