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wuyuyu2007铜虫 (小有名气)
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[求助]
英文语法修改，望个位大侠帮忙小妹啊
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第一句：While, the most commonly used method is to physically mixed phosphors: yellow/red phosphors, green/red phosphors, or green/yellow/red phosphors [5-7]. So, it’s urgently needed to find novel green or red-emitting phosphor. 楼主疑问：上面句子是不是 is to physically mixed 改成is to physically mix ，去掉mixed 后面的ed?还是其他地方有问题？ 第二句：However, because the emission spectra of these phosphors absences in the red region, so YAG: Ce based white LED has a poor color rendering index (CRI). 楼主疑问：这句楼主只发现because和so 的错误，还有其他错误么？ 第三句：After fully grinding, small amounts powder were putted into an alumina crucible in a tube furnace and slowly heated to 1400℃ under a reducing atmosphere (5% H2+95% N2). 楼主疑问：楼主实在找不出这句有什么疑问？难道是put的被动语态用错了？ 第四句： the characteristic peaks are at 2θ =12.87°, 25.98°, 31.98°. X-ray diffraction patterns of doped Eu2+ are in good agreement with the X-ray diffraction which is reported by Lee et al, 楼主疑问：改成The characteristic peaks are at 2θ =12.87°, 25.98°, 31.98°, which agree well with the phase reported by Lee et al, 第五句：The peak position shifts to long wavelength when the Eu2+ concentration is more than a critical concentration, which can be demonstrated as red-shift 楼主疑问which can be demonstrated as red-shift这个句式对么，demonstrated后面能否加as? 第六句：It can be seen clearly that the enhancement of Ce3+ co-doped SrSiON:Eu2+ is about 140% compared with the one without Ce3+ co-doped. 楼主疑问：句子意思是加入Ce亮度提高140%，这句这样改对么，with 后面的 co-doped是否加ing 第七句：It is because of the energy transformation from Ce3+ to Eu2+ in the host lattice of phosphor samples. 楼主疑问：总觉的because of 在这里用不好，应该用attribute to？ 第八句：Consequently, Ce3+ and Eu2+ ions are acted as a sensitizer and an activator, respectively. 楼主疑问：Consequently, Ce3+ and Eu2+ ions act as a sensitizer and an activator, respectively.好还是上面一句好？ 第九句：Therefore, the electric dipole-dipole interaction predominates in the ET mechanism is from Ce3+ to Eu2+ in SrSiON: Eu2+,Ce3+. 楼主疑问： is from Ce3+ to Eu2+ in SrSiON: Eu2+,Ce3+ from前面要加 is 么？ 第十句：The 4f→5d transition of Ce3+ and Eu2+ ions is allowed . So the energy transfer from Ce3+ to Eu2+ ions is predominantly due to the electric dipole-dipole interaction according to the theory of energy transfer[13 楼主疑问：楼主的师兄觉得这句有问题，这句是楼主引用的理论，楼主实在看不出语法有什么错误? 第十一句：Therefore, the R of ET was calculate to be about 25.44Å. 楼主疑问：这句话是不是时态的问题？ |
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wuyuyu2007
铜虫 (小有名气)
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- 专业: 光子与光电子器件
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第二句：However, because the emission spectra of these phosphors absences in the red region, so YAG: Ce based white LED has a poor color rendering index (CRI). However, these phosphors lack the red region in their emission spectra of , therefore YAG: Ce based white LED has a poor color rendering index (CRI). 楼主疑问：是不是of 应该移到lack 后面：However, these phosphors lack of the red region in their emission spectra , therefore YAG: Ce based white LED has a poor color rendering index (CRI). 第六句： It can be seen clearly that the enhancement of Ce3+ co-doped SrSiON:Eu2+ is about 140% compared with the one without Ce3+ co-doped. 应该写明具体是什么增加了，折中表达法很不合理 楼主疑问：改成这样可以么：It can be seen clearly that the luminescent properties of SrSiON:Eu2+ ,Ce3+ phosphor are enhanced about 140% compared with the one without Ce3+ co-doped. 第九句：Therefore, the electric dipole-dipole interaction predominates in the ET mechanism is from Ce3+ to Eu2+ in SrSiON: Eu2+,Ce3+. 这句话很难看懂，句子结构不合理 楼主疑问：改成这样可以么，Hence, the energy transfer from Ce3+ to Eu2+ ions is predominantly attributed to the electric dipole-dipole interaction. |
5楼2012-09-20 11:01:37