| 1. | Retrospective clinical analysis on pathogen spectrum distribution and antimicrobid resistance in vap
社区获得性尿路感染菌群分布及耐药性分析 |
| 2. | A doctor can find different spectrum distribution at each time segment , and can also look over frequency field corresponding time domain information
医生可以查找任一时段的不同谱峰分布，也可以查看任一频段对应的时域情况。 |
| 3. | For a start , the principle , configuration , spectrum distribution of dds are illuminated in this paper . the distributions of spurious frequency are specially analyzed in this section
本文首先讲述了dds的原理、结构和频谱分布，其中重点讲述了dds的频谱分布的杂散分析。 |
| 4. | However , the efficiency of pwm at light load is low and the filter design of pfm is rather difficult due to the random characteristic of the frequency spectrum distribution
采用相应调制方式的ic品种繁多,各有千秋。但pwm在轻载时效率较低,而pfm由于频谱分布随机,不利于后续滤波器的设计。 |
| 5. | As a result of interference of light , the spectrum distribution of light will change in some condition when it pass through some medium , and the change is determined by the parameter of the medium
利用光谱仪测量干涉后的光谱分布，再结合优化算法拟合测量光谱曲线，反演出光学介质的某些未知物理参数。 |
| 6. | This paper illuminates theory , structure , spectrum distribution , merits and defects , especially spurs of direct digital synthesis ( dds ) , and it then introduces phase locked loop ( pll ) theory
对dds的结构、优缺点、频谱分布，特别是杂散性能进行了详细的阐述。接着，又介绍了锁相环（ pll ）的原理。 |
| 7. | It reduces the “ music noise ” using the human auditory characteristics , and enhances the hearing quality using the speech spectrum distribution characteristics in the time - frequency dimension
主要以谱减法为基础,结合人耳的听觉特性从而减少残留“音乐噪声”的影响;结合语音的语谱在时-频域分布特性从而提高增强后语音的听觉质量。 |
| 8. | According to the characteristics of the human pronunciation and the speech spectrum distribution in the time - frequency dimension , the paper finds out that there is a shortcoming of the speech enhancement system which is based on the masking properties of human auditory
根据人的发音特点,通过分析语音的语谱在时-频域的分布,发现把听觉掩蔽效应应用于语音增强时存在不足之处。 |
| 9. | The work was held out by the fund of nature science , 863 fund and innovation fund of chinese academy of sciences . in this work , we firstly got the relative spectrum distribution of lpp source with jet gas target in domestic lpp source study
该项工作是在国家基金、 863 、中科院创新基金支持下完成的，首次在国内获得喷气靶激光等离子体光源的相对光谱分布，为进一步进行高精度测量工作奠定了基础。 |
| 10. | On the basis of lorenz - mie theory , this paper is devoted to the research on characteristics of intensity and spectrum distributions of each order rainbow for a homogeneous particle , with the usage of geometric optics theory , airy theory and debye theory
本文基于小粒子散射的lorenz mie理论，结合彩虹的其它理论（几何光学理论、 airy理论、 debye理论）研究了均匀球、柱粒子各阶彩虹强度分布和频谱特点。 |
