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北京石油化工学院2026年研究生招生接收调剂公告
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催化剂小常

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Despite the success in demonstrating functional enhancements from these top-down methods, a bottom-up method based on in situ combination of zeolite precursors and guest species [metal ions or nanoparticles (NPs)] is pursued because of its facile and controllable synthesis protocols

top-down methods
a bottom-up method。这两个怎么翻译

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tsung

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【答案】应助回帖

RXMCDM: 不是应助啊。 2014-04-10 21:26:43
RXMCDM: 未评帖。 2014-05-03 09:00:57
综合前后文看看吧.只看这段话不明白这是什么方法
ilovescience
2楼2014-04-10 20:59:04
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RXMCDM

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真强必胜: 金币+1, 好 2014-04-14 19:38:43
???????u???g????????????????????Top down ?c Bottom up??Top down ?????????O???????????K????????С???????g??Bottom up??????????????????С?????_?l????????????g?????????????o???Bottom up ??????x?????"???????"?O??????????????c???????棬???\?????I???I???????Q????a??u??????????????棬???u??????????Y????????棬????????@????O????䶮????????O?????a??r ??????????O?"(Bottom-up design)?????????Q?????????????С????M?_??O??????????M???д?????M??????????????w?????????Bottom up???????u??????????Y?????????????^????????u???????????????????????????С??M?????M???????y??????????O??M??????????Y?????K?????????????B?u?K????building block?????????u?????M?b????????????????y?????u???????????棬??????2?N????????W?s?????????????(Bottom-up)??M????g?????????????????B????????????????????I???????????塢???z ?C ???z?????W??????e(chemical vapor deposition)????????u?u??????L??????????????????????????????g??(lithography)???????g??(etching)???g????????????^?????????(top down)??????????u??????????????????????w?u????bottom up????????????????e??????????????????_?????????O??{?D????B???????????????^???У???????????????Π?o????????????????Top down?g?????衣????????g????С?????bottom up???????????С????Top down?????????,?????????????????е??u?????u???????????
3楼2014-04-10 21:21:26
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