查询词典 envelope plane

The project proposed and established the strict unique mathematical model of instantaneous frequency aiming at the currently existed problems in Hilbert Huang Transform form the viewpoint of physical connotative meaning; proposed and established the strict mathematical model of general intrinsic mode signal based on the concept of general continuous intrinsic mode signal and the compositive principle of practical general intrinsic mode signal; researched and proposed the fitting method of envelope lines in HHT from the viewpoint of theory, conquered the blindness and random in quondam EMD envelope line fitting and boundary treatment; developed a virtual time-frequency analyzer based on general intrinsic mode signal decomposition to open out the local time-frequency characteristics of nonlinear and nonstationary signal more deeply and accurately.

本项目针对希尔伯特-黄变换现阶段存在问题，从物理内涵的角度提出并建立了瞬时频率严格的唯一的数学模型；基于连续性的一般固有模态信号的概念和实际信号的一般固有模态信号的组成原理，提出并建立了一般固有模态信号严格的数学模型；从理论角度研究并提出HHT中的包络线构造方法，克服了原EMD的包络线构造和边界处理的盲目性和随意性；研发一台基于一般固有模态信号分解的虚拟式时频分析仪，使之可以更深入、准确地揭示非线性非平稳信号的时频局部特征。

The suggested method was applied to varying excitation pulse shapes: square envelope and chirped hyperbolic secant envelope.

本文将替换过程分为服务替换和路径替换2种方式，并详细介绍了这2种替换方式的实现方法。

The brother really think only to so much, and feel very lost, because the removal of his grandfather, the elders gave away 100 yuan, can be uncle and grandfather only to 10 yuan, he was lost and angry, ran out, and I see uncle grandfather He went out on and my parents talked for a while, then my brother came in and told me 10 yuan should Jiuyeyeshuo and grandfather from the maternal uncle took over the red envelope, my brother open the red envelope a look at 100 yuan, just wiped out those who feel frustrated, he is like a rose to heaven from hell, like happy people who jumped up.

弟弟真的以为只给那么多，感觉到非常失落，因为除去他爷爷以外的长辈都给100元，可舅爷爷就只给10元，他很失落和生气，跑出去了，我舅爷爷看他出去了，就和我爸爸妈妈聊了一会，后来我弟弟进来了，就对我舅爷爷说10元钱也要，并从舅爷爷手中接过了红包，弟弟打开红包一看是100元，刚才那些感到失落的心情一扫而光，他就像一个从地狱升到天堂的人一样高兴的跳了起来。

Refining the Montgolfier brothers' concept, he designed the propane burner system, new envelope material, the modern light-bulb-style envelope shape we see today, a new inflation system, and many safety features.

精炼的孟格菲兄弟'的概念，他设计的丙烷燃烧器系统，新的信封材料，现代的光球式信封形状，我们今天所看到的，新的通货膨胀的系统，以及许多安全特性。

The flap of an envelope .A stamped, self-addressed return envelope is enclosed for your convenience.

信中附有一张贴好邮票和注明发信人地址姓名的信封，以供您使用。

And the envelope solitary wave solutions and envelope sinusoidal wave solutions have been obtained.

得到了该方程的包络孤立波解和包络正弦波解。

The envelope solitary wave solutions and envelope sinusoidal wave solutions of DNLS equation are obtained.

得到了DNLS方程的包络孤立波解和包络正弦波解。

He leaned upon his hand, with his untasted breakfast before him, and he stared at the slip of paper which he had just drawn from its envelope. Then he took the envelope itself, held it up to the light, and very carefully studied both the exterior and the flap.

他一只手支着头，面前放着一口未尝的早餐，两眼凝视着刚从信封中抽出来的那张纸条，然后拿起信封，举到灯前，非常仔细地研究它的外观和封口。

Yellow Sea ; Clupea pallasi ; vitelline envelope ; fertilization envelope ultrastructure ; glycoprotein ; PAS positive material ; dynamic change

黄海；太平洋鲱鱼；鲱鱼卵黄膜；受精膜亚微结构；糖蛋白； PAS阳性物质；动态变化

The Hilbert amplitude envelope of the stator current includes the low frequency of fault characteristic, thus it can reduce the signal length by resample the Hilbert amplitude envelope of the stator current by downsampling, which can avoid spectrum aliasing. Then it can reduce the computation time of the MUSIC Method for the spectrum analysis to the resampled signals for the given bandwidth. Meanwhile combining continuous subdivision Fourier transform and rotor slot harmonics based slip estimation it can in advance estimate the concrete values of the fault characteristic frequency, and then inquiry purposely the fault feature component information in the stator current spectrum in order to accomplish the broken rotor bar fault with high sensitivity and h reliability, which eliminates adverse effect of issuable false peaks to the fault detection and formed a novel scheme to detect broken rotor bar fault.

定子电流Hilbert幅值包络信号包含了低频的故障特征频率调制信号，故通过对定子电流Hilbert幅值包络信号进行降采样率重采样、减少分析信号长度，可避免低频段频谱混叠，再对减少的重采样数据进行具有超分辨率的MUSIC低频段估计，可大大降低MUSIC算法频谱估计时间；运用连续细化傅里叶变换和转子齿槽谐波转差率估计技术，可预知故障特征频率精确值，从而可有目的地查询故障分量，消除MUSIC虚假波峰对故障检测混淆的影响，大大提高了故障检测的灵敏度和可靠性，以此形成异步电动机转子断条故障检测新方法。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！