查询词典 make a difference

Some information such as pitch and harmonic of each speech stream, interaural time difference and interaural intensity difference and etc could be obtained from overlapping speech by the analyzing and modeling of overlapping speech and noisy speech, based on which the interested speech can be reconstructed and overlapping speech can be separated.

通过对混叠语音和含噪语音进行分析建模，对混叠语音分别提取其各自语音流的基音及谐波、双耳时间差ITD和强度差IID等信息，并以此重构目标语音分量，达到分离混叠语音的目的。

By considering higher orderapproximation to interaural phase difference,a moregeneral localization equation(which is applicable to f＜1.4kHz)is derived,and the localization equation forstereo sound image with interchannel phase difference isalso given.

并且提出了重发通路间存在相位差时的立体声声像定位公式。

As a differential detection is used between the intercarrier, the proposed algorithm overcome the high sensitivity to timing error of conventional algorithm and is robust to multi-path. The effect of sample frequency offset can't be ignored in a continuous OFDM system of a large number of subcarriers. The estimation precision of the conventional algorithm is low and the realization is complex. A joint estimation of sample frequency offset and fine frequency offset based on difference operation is proposed. As averaging use a large number of samples in a maximum likelihood algorithm, the estimation precision is very high. The use of difference operation cancel the effect of carrier frequency offset, and the proposed sampling frequency estimation algorithm is robust to carrier frequency offset.

最后，本文对连续系统中的采样频率和载波频率精同步技术进行较为深入的研究，由于子载波数目大的连续OFDM传输系统中，采样频率偏差不可忽视，以往的采样频率估计方法精度低、实现复杂，因此本文提出了一种基于差分处理的采样频率偏差和精载波频率偏差联合估计算法，利用了最大似然算法进行采样频率偏差的估计，由于采用了差分处理方法，消除了载波频率偏差对采样频率偏差估计的影响，采用的最大似然算法对大量样点进行平均化处理，所以，相对以往算法，提出的联合算法估计精度高，而且采样频率偏差估计对载波频率偏差具有鲁棒性。

The anteroposterior projectionof the foot, utilized to examine the foot disease in the past was referred as to the freely-stressed method. However, most of the patients on suspicion of Hallux Valgus get pains while standing with weight-bearing. Additionally, the patients' real conditions can not be diagnosed without standing. it is helpful for us to apply both the foot weight-bearing and the foot non weight-bearing so as to probe the individual difference between the HVA and the IMA 1(superscript * intermetatarsal angle and further to provide the informative resources concerning the assessment of performing surgery operation. The study include 40 patients who we having Hallux Valgus of different degree, The findings have revealed the significant difference among 40 patients after the method-weight-bearing AP of the foot projection given.

过去一般常用诊断足部疾病的足部摄影(anteroposterior projection of the foot； AP projection of the foot)是指未施加压於病人足部的拍摄方法，然而多大脚趾外翻的病患常於站负重时感觉疼痛舒服，而未负重摄影却无法呈现出病人站时的真实态，因此我们用足部前后位负重摄影(weight-bearing AP projection of the foot)与足部未负重摄影(non weight-bearing AP projection of the foot)的影像比较其大脚趾外翻角(Hallux valgus angle， HVA)及第一跖骨间的角1(上标 st intermetatarsal angle， IMA的差，进而提供外科手术的估评。

There was not any difference in extractives content among trees diameter classes of stand, but the significant difference was found inwood basic density.

林分内不同径阶树木同一轮纤维形态、导管形态特征株间差异不显著。

At the contralateral side, an ischiac bone graft (baseline 3 4 0.87) was transplanted. The healing period was 5 months. Group A11: The animals were treated in the same manner as in Group A5 with the difference that the healing period was 11 months. Group B5: The animals were treated in the same manner as in Group A5 with the difference that an e-PTFE membrane was adapted oer the bone graft on each side of the jaw.

愈合时间为5个月。A11组：用与A5组相同的方法处理小鼠，愈合时间为11个月。B5组：处理小鼠的方法与A5组相同，在每侧颌骨的骨移植物上方各置一片e-PTFE膜。B11组：实验方法与B5组相同，但在骨移植5月后，进行第二次手术取出生物膜，愈合时间为11个月。z在下颌骨骨量增加后，分别于第5个月处死A5组及B5组的小鼠，第11月处死A11组及B11组的小鼠，取下颌骨标本，体式显微镜测量骨移植物的宽度、长度及高度。

Immunohistochemical study showed that ER and PR were mainly localized in karyon of epithelial and stroma cell, and also in smooth muscle cell in all specimen. Marked difference of intense staining was observed between implantation site and non-implantation site in the same patient, and the latter is stronger for both ER and PR . There are significant difference between implantation site and non-implantation site for ER expression or PR expression (t=- 3.895, p=0.001; t=- 3.574, p=0.001, respectively).

第一部分输卵管妊娠种植部位、非种植部位和慢性输卵管炎中雌孕激素受体的表达方法：采用免疫组化方法对30例输卵管妊娠患者的种植部位和非种植部位，12例分泌中期慢性炎症输卵管壶腹部ER、PR的定位及半定量研究，并以17例分泌中期正常壶腹部输卵管为对照。

Along with seawater stress strength upward, the ratio of root to shoot, Na+, Cl- and soluble sugar contents were increased significantly. Under the 10% and 20% seawater treatments, chlorophyll contents have no obvious difference compared with the control, but significantly decreased when the seawater stress further increased. Under the 10% seawater treatments, K+ contents in the shoot and root of Lactuca indica seedlings have no distinct difference compared with the control, but along with seawater stress strength upward, K+ content were markedly decreased by degrees. However, soluble protein content first increased then decreased with seawater concentration augment.

结果表明：苦荬菜幼苗地上部受海水胁迫较为显著，而根在30%海水以内与对照相比没有显著差异；根冠比随着海水比例的增加而提高；10%和20%海水处理下，叶绿素含量与对照相比差异不显著，但随着海水浓度的进一步增加，叶绿素含量显著下降；10%海水处理下，苦荬菜地上部分及根K+含量与对照差异不显著，高于10%海水处理，K+含量随海水比例的增加地上部和根部均逐渐显著降低；海水处理下，体内Na+和Cl-含量逐渐显著增加；地上部可溶性糖逐渐显著增加，而可溶性蛋白呈先升后降。

The results show that there are some difference between normal and affected leaves in structure,there are more difference in lamin.

结果表明，患病毒病仙客来的叶片及叶柄与正常植株的叶片及叶柄的解剖结构均有一定的差异，其中叶片的解剖结构差异较为明显。

Result:the incidence of AP went up year by year;(2)bile tract disease is the major reason,but hyperlipdemic AP should be attach importance to for its higher and higher incidence;(3)mean age of biliary AP is higher than alcohlolic and hyperlipdemic AP;(4)the difference of sex is significant in biliary AP and alcohlolic AP;(5)the incidence of local omplications is lower than alcohlolic and hyperlipdemic AP,but the difference is of no significance in view of systemic complications;(6)lungis of the most liability for dysfunction,and renal dysfunction is most closely related to death ;(7)ESS is associated with AP and related to the severity and prognosis .

结果表明：(1)急性胰腺炎发病率呈逐年上升趋势；(2)胆道疾病仍是急性胰腺炎的首要病因，高脂血症性胰腺炎明显增多，应受到重视；(3)胆源性胰腺炎患者年龄高于酒精性和高血脂性等其它原因的胰腺炎；(4)性别差异在胆源性、酒精性胰腺炎中显著；(5)胆源性胰腺炎出现局部并发症几率少于酒精性和高血脂性胰腺炎，而在全身并发症上无明显差异；(6)重症急性胰腺炎中，肺脏最易发生功能障碍，肾功能障碍与死亡关系最密切；(7)急性胰腺炎易伴发正常甲状腺病态综合症，并与其严重程度和预后相关。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。