查询词典 domain

Its algorithm to recursively continue the source and receiver wavefields, which includes a wavenumber domain phase shift in a constant background medium followed by a phase correction in the space domain that accommodates lateral velocity variations, can tackle the effects of lateral velocity variations for imaging under complex overburdens.

其递归波场延拓算法包含波数域针对常速背景的相移处理和空间域针对横向速度扰动的相位校正，可以应对上覆地层速度横向变化对构造成像的影响。

Remote sensing image was decompressed into frequency domain image by wavelet transform and the bit planes in frequency domain image were permuted by SBI transform seperately. The resulting data was compressed by arithmetic encoder.

采用小波变换对遥感图像进行分解，将生成的频域数据按不同比特平面分别进行SBI变换并用算术编码进行压缩。

L The solving precesses of time domain and frequency domain for n-order linear fuzzy differential equations are given.

正态模糊随机过程在工程应用中特别有吸引力，因为本文证明了它由二阶模糊统计量完全确定，并且在线性运算下是闭包的。

From the viewpoint of materialism, time domain is premised on space domain.

按照唯物主义的观点，时间范畴又以空间范畴为前提。

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提供域名托管和域名借调，完成与邮件主机和备份的邮件服务器。

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提供域名托管和域名借调，完成与邮件托管和备份邮件服务器。

Based on the fact that the different modes of Rayleigh wave have different propagation velocities, the signals of Rayleigh wave which superposes in time domain can be separated in frequency-wave-number domain, different modes of Rayleigh wave are separated and extracted by Fourier transform.

摘 要：应用Fourier变换法分离提取地震记录中不同模态的瑞雷面波，其原理是：利用瑞雷面波各模式传播速度的差异，将时间域中叠加在一起的瑞雷面波信号在频率波数域中分开，以此实现分离提取各阶模态瑞雷面波。

I believe that this has been largely due to the complementary relationship between domain-driven design, the rich domain model pattern, and test-driven development.

我相信这已很大程度上由于域驱动设计、丰富的域模型模式和测试驱动开发之间相互补充的关系。

In this paper Ⅰ successfully applied these methods to fault diagnosis, and presenting some new innovative machinery fault diagnosis method; First Ⅰ present a new gear wornout fault diagnosis method, this method use the vibration signal's time-frequency attribute and instantaneous phase undulation to accurately detect gear's fault, and by comparing with the traditional frequency domain analysis method, this method reveals that many nonlinear and nonstationary characteristic exist in gear's vibration, this tell us that if we use frequency domain analysis method without pay attention to the signal's characteristic, we could get wrong diagnostic result; Then Ⅰ present a new bearing fault diagnosis method, this method use ATVFD and Hilbert transform to do envelop demodulation,Ⅰ analyze the envelop with time-frequency method and find out that this method is more accurate then traditional method.Ⅰ also explain that the modulation of the fault to the carrier wave may also be non-stationary and nonlinear; Finally Ⅰ present a cylinder pressure measurement method of diesel engine by means of vibration, cylinder pressure is an important parameter of diesel engine fault diagnosis, the pressure measuring is simplified a lot by this method,Ⅰ also use the ATVFD and time-frequency analysis to realize it.

本文中将上述理论方法成功地应用到故障诊断中去，提出了几点创新性的诊断方法；提出了一种齿轮磨损故障诊断的新方法，该方法利用振动信号能量的时频域分布特征与瞬时相位波动特征可以进行精确的齿轮故障诊断，并通过与传统的频域诊断方法的比较，揭示出齿轮振动中存在的明显的非线性与非平稳特征，说明了不加选择地利用频域分析方法进行齿轮故障诊断很可能会得到错误的诊断结果；提出了一种轴承故障诊断的新方法，该方法利用ATVFD分解与Hilbert变换进行包络解调，并对解调得到的包络信号进行时频域分析，可以实现更加准确轴承故障诊断，说明了故障对载波信号的调制往往也是非平稳与非线性的；提出了一种利用振动信号进行柴油机汽缸内压力检测的新方法，柴油机汽缸压力的变化是柴油机故障诊断的重要参数，利用振动方法可大大简化汽缸压力的检测过程，该方法也是综合利用ATVFD分解与时频域分析方法实现的。

" Chinese highway journal " Chinese highway learns to sponsor, the definitive science journal that Chang'an university and academy of science of highway of the Ministry of Communication undertake jointly (ISSN 1001-7372, CN 61-1313/U), basically publish civil engineer, bridge and tunnel project, traffic project, car and car to use the paper of the domain such as machine of project, content shedding, economy and management, project, administrator of personnel of technology of the researcher that main constituency is highway traffic domain, project, economy reachs academical teachers and students.

梗概： 《中国公路学报》是中国公路学会主办的，长安大学和交通部公路科学探究院共同承办的权威性学术刊物(ISSN 1001-7372，CN 61-1313/U)，主要刊载道路工程、桥梁和隧道工程、交通工程、汽车和汽车运用工程、物流、经济和管理、工程机械等领域的学术论文，主要读者为公路交通领域的科研人员、工程技术人员、经济管理人员及大专院校的师生。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷