查询词典 tracing

In the surveys, some very closely spaced survey lines displayed remarkable differences in crustal structure. To find the reasons for the differences and to analyze the reliability of crustal structure, ocean bottom seismometer data from the west and east sides of the Dongsha Islands were reprocessed and inverted with tomography technique. The routine processing and inversion procedures include clock correction, position correction, finite-difference ray-tracing-based tomography, checkerboard test and comparison of the inverted crustal model with initial models. As a key step, we analyzed the lateral velocity resolution and smoothed out the short wavelength velocity variation which maybe most probably artifacts in the final velocity models.

在一些相隔很近的测线上，探测的深部地壳结构却相差较大，为了分析这些探测结果中差异的原因和地壳结构变化的可靠性，本文以东沙东侧海域测线和东沙西侧海域测线为例，对采集的海底地震仪记录进行了时间、位置校正和初至波走时拾取，利用有限差分地震走时层析成像进行了走时反演，获得所在剖面的地壳速度结构，并分析了模型的横向分辨率，剔除模型中短波长的横向速度变化。

This method involves forward modeling wavefield identification,interactive travel time pickup,minimum travel time ray tracing in the interface net,spline coefficient inversion instead of slowness inversion and final velocity field synthesising.

该方法利用正演模型识别波场，用交互法拾取走时，采用界面网最小走时射线追踪法进行射线追踪，并用反演样条系数代替反演慢度，最后合成速度场。

This dissertation focuses on how to apply digital fingerprinting and traitor tracing to the copyright protection of digital contents and privacy protection.

如何在防止盗版的同时保护用户的隐私也是一个亟需解决的关键问题。

A finite automaton was used to build up the shallow water ray tracing model,and the model state,transition, event and action were analyzed.

用有穷状态自动机对浅海的声线追踪建模，给出了浅海声线追踪内在的状态及状态转移分析。

A power ultrasonic supply ,which can realize zero phase difference frequency tracing and fixedness of output power,is presented in this paper.

本文介绍了一种具有无相差频率自动跟踪和输出功率恒定功能的功率超声电源，此电源采用集成锁相环来实现无相差自动频率跟踪，采用 PWM方式控制 BUCK电路的斩波，达到恒功率及功率可调的目的。

The paper also shows the software design plans, which include algorithm procedure and its convertion to executable code in DSP system, the flash burn of the code and its bootload in DSP and the design of tracing software in computer.

论文给出了系统的软件设计方法，包括算法的程序编写并转化为DSP系统的可执行代码、程序代码的烧写与自举加载以及上位机跟踪软件的设计。

And the intensity distribution in the focal plane is calculated with the ray tracing of finite element.

本文对卡塞格林系统在焦平面上的衍射效应进行了分析，并采用有限元素光线追踪法对衍射效应进行了计算。

Especially in the field of military , infrared small moving target detection technology holds an important position in advanced weapon system of Occident, including forewarn system of aeroplane carrier, infrared searching and tracing system of varies airplanes, infrared imaging guidance missile and warning system of some ground military facilities.

尤其在军事领域，目前在欧美国家的一些先进的武器系统，包括航空母舰的预警系统、各种飞机的红外搜索跟踪系统、红外成像制导导弹和一些地面军事设施的告警系统中，红外弱小目标的检测技术的地位举足轻重。

The periodic function which is obtained by tracing the closed contour can be expressed in a Fourier series.

藉由描绘闭合的轮廓曲线得到的周期函数，可以用傅立叶级数来表现。

In this paper,a low cost W band frequency tracing transceiver system is presented,which is used for digital communication.

本文采用频率跟踪方案，实现了W波段数字通信系统，并详细描述了系统的关键技术。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48