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9 天
海水淡化领域的新突破:如何将海水淡化技术推向循环,实现再生 ...
虽然目前全世界只有约 5%的供水是通过海水淡化生产的,但预计未来十年新建海水淡化厂的数量将增加一倍以上。这可归因于气候变化的影响、人口增长导致的需求增加、新的廉价陆地水源有限,以及膜技术的进步预计将进一步降低海水淡化的成本和能耗。
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18 天
9.17 每日听写 | VOA慢速
每篇校对后写在听写笔记下面并罗列,这些才是你每天的进步之基。 The material is used to make a huge number of different products: water bottles, car parts, children's playthings, clothing, electronics and more.
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5 天
SFC Markets and Finance | Bandar AlKhorayef: More Chinese technologies will be used in ...
As a major oil-producing country in the Middle East, Saudi Arabia has long been unwilling to tie its economic lifeline solely ...
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