查询词典 multilevel

Multi-component and multilevel geophones are adopted with the same seismic source to gather VSP and surface seismic data.

为了提高井位设计的准确性，降低油田开发风险，对该区进行了井地联合地震勘探。

This system's innovation as follows: it is first time to implement the Mobile Bank System which is used by the J2ME technology. Use wireless encrypt method to transport, implement the new-style of virement service, multilevel secret key system and ensure the security of the account and the trade.

本系统的技术创新点是：首次使用J2ME实现了手机银行系统的开发和应用，采用无线加密方式传输，实现新型的转帐业务的实现，多级密钥管理，保证帐户和交易的安全。

The characteristics of human visual system is used to embed the watermarks which is encrypted into mid-frequency subbands coefficients of Y branch of host image after Y branch of host image is transformed by the multilevel structures wavelet transform in the YIQ pattern space.

该算法利用形式简单的二维离散超混沌系统产生的超混沌序列生成密码对水印图像加密，同时根据人类视觉系统的特性，对宿主图像在YIQ色彩空间中的Y分量进行多级离散小波变换后，将加密后的水印图像嵌入到宿主图像Y分量的DWT中频子带中。

Keywords: Multilevel security,relational database,system state,axiom,rilles of state transition.

并证明了经改进后的模型所给出的系统是安全的。

Thus, a 50-foot set is craned in to announce the season's keynote: in this case, a vast multilevel stack of steel-gray tubes, suggesting organ pipes.

因此，一个50英尺的设置是craned在宣布本赛季的基调：在这种情况下，广阔的多层次的堆栈钢灰管，暗示器官喉管。

A simulation research is conducted on the example of six-phase double star winding shifted by 30°synchronous motor.In order to investigate the control algorithm of multilevel inverter , high harmonics as well as its problems, a mathematical model of the control algorithm based on the voltage space vector is built. For the first time, the principle along boundary is introduced to confirm the chosen switch state when many switch states are corresponding to the same vector. Simulation analysis and hardware realization are conducted with the combination of diode clamped three-level inverter and five-level inverter.

建立了基于空间电压矢量控制算法的仿真模型；仿真研究中采用对偶小矢量搭配改善中点电位波动的问题；针对多个开关状态对应同一待选矢量的问题引入&循边原则&确定被选择的开关状态；对过调制问题进行了相应的处理：结合二极管嵌位式三电平逆变器和五电平逆变器进行了仿真分析和硬件实现。

Multilevel series-wound tanks can increase yield by 24%, largely improve the efficiency by partially preventing back-mixing of the liquid phase.

实验中使用多级串联储罐消除部分返混，可以使优化效果有较大幅度地提高，收率提高24%。

Removing different kinds of impulsive noise in image is systematically researched, and proposes three image removing noise filter based on fuzzy information processing technique, i e., fuzzy entropy-based filter for removing noise in multilevel image, histogram-based filter for removing salt and pepper noise in image, and histogram- based adaptive filter for removing image impulsive noise.

该章对图像中不同类型加性脉冲噪声的去噪问题进行了系统地研究和分析，提出了三种基于模糊信息处理的图像平滑去噪滤波器，分别为基于模糊熵的多值图像去噪滤波器、基于直方图的图像椒盐噪声滤波器、基于直方图和区域信息的自适应图像脉冲噪声滤波器。

The status quo of the development of the high voltage high power conversion technology is summarized in chapter 1 and two interrelating technology developments - power switching devices and digital control technology, are introduced. In chapter 2, the topologies of multilevel converters and control schemes are summarized. Moreover, their advantages, disadvantages and application fields are also analyzed and compared.

本文首先在第一章中对高压大功率变流技术研究现状进行了回顾，并对与多电平变流技术紧密相关的电力电子功率器件、数字控制技术的发展情况做了介绍；第二章对目前多电平变流器的电路拓扑和控制策略进行了总结，并将各自的优缺点和应用场合加以分析、比较。

We will see in the following chapters that the production module of Tiny ERP is very flexible and bears: multilevel nomenclatures and ranges, cascade productions, phantom and substitution nomenclatures, as well as the configured products.

我们在接下来的章节中会了解到Tiny ERP的生产模块非常的灵活，它拥有：多层级的物料，级联生产，幻影物料，物料替换，自定义产品等等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。