查询词典 spectrum analysis

First the power spectrum of fault signals is decomposed by wavelet analysis, which predigests choosing method of fault eigenvectors.

首先对故障信号功率谱进行小波分解，简化了故障特征向量的提取。

First the power spectrum of fault signals were decomposed by wavelet analysis, which predigests choosing method of fault eigenvectors, and then the LSSVM was adopted to diagnose faults.

首先对故障信号功率谱进行小波分解，简化了故障特征向量的提取，然后采用最小二乘支持向量机进行故障诊断。

The products was through the world authoritative analysis organization--Shanghai SGS Certification Center, Spectrum Town Test Center and Saibao testing laboratory's rigorous test, such as expansion rate test, welding test, pollution test, chromic acid silver paper test, bronze mirror test, acid value test, non-halogen test, aging test and so on, and all the test passed thoroughly, achieve the targets of JISZ3283-2001 standards and meet ROHS Notice 2002/95 / EC technical indicators.

公司产品通过世界权威检测机构上海SGS认证中心、谱尼测试中心、赛宝实验室的严格测试，如扩展率测试、可焊性测试、污染度测试、铬酸银试纸测试、铜镜测试、酸值测试、无卤测试、老化测试等均合格通过测试；各项指标达到JISZ3283-2001标准及满足ROHS公告2002/95/EC技术指标。

The result of infrared spectrum contrast analysis with standard quartz, agate and opal shows that the main mineral composition of Chaoyang petrified wood is quartz, a natural petrified organic jewel, which has a bright future in development and application.

通过与标准石英、玛瑙和蛋白石的红外光谱对比分析，研究结果表明朝阳硅化木的主要成份为石英，属天然石化型有机宝石，开发利用前景十分广阔。

Taking Qixia City as the research region, using supervised classification of the flowering apple digital photos to extract the target information of the ratio of apple flower/leaf and apple flower/tree, this paper carries out the correlation analysis of the ratio data with synchronization hyperspectral detection data, to determine the spectral features and sensitive spectrum wave band of the apple florescence.

以栖霞市为研究区，利用苹果花期数码照片监督分类，提取苹果花树比和花叶比指标信息，通过与同步高光谱探测数据的相关分析，研究苹果树花期光谱特性，确定其敏感的光谱波段。

This system which can do correlation analysis among vacuum arc imagine, light intensity spectrum density, electron density, vacuum arc voltage, vacuum arc current has a series of properties like synchronous exposure, high sampling speed, good quality with comparatively low price, strong functional software, friendly user's interface and so on.

本课题研制成功了真空电弧动态图象高速微机采集系统，该系统具有同步曝光、采样速度快，性能价格比高，软件功能强，用户界面好等特点，该系统可对瞬时的真空电弧形态，光强密度，电子密度，电弧电压，电弧电流进行相关分析。

Through visual and scanning electron microscopic inspections and analyses of chemical, fracture surface energy spectrum and metallurgic analysis results of stator winding bar sample (including rectangle copper tube and flat copper bar) of generators Nos.

通过对某发电厂5、6号发电机静子线棒断裂试样的断口宏观及扫描电镜观察、化学成分、断口表面能谱成分、金相组织等检验结果进行分析，认为该线棒断裂原因为腐蚀疲劳。

This paper primarily presented the radioactive characteristics about the strata in Qiangtang basin and the granite in southeast outside of basin based on the following data, radioactivity gamma-ray spectrum survey in field, some chemical analysis data of granite, car-borne gamma-ray spectrometry made by other geological department, and a few regional investigation material so on.

以野外放射性能谱测量数据和部分化学分析数据为基础，结合其他部门在该区的汽车能谱测量数据和少量区调数据，对羌塘盆地出露地层及其东南外围地区花岗岩的放射性特征进行了初步分析。

According to Sony, Analysis of communication conditions has been impossible with conventional spectrum analyzers where data is not viewable on a timeline, because the data that is transmitted between the reader/writer and card cannot be identified.

索尼认为，由于常规的频谱分析仪无法鉴别IC卡和读写器之间的传输数据，所以无法实现以时间为序对数据实施查阅，也无法满足连接条件的分析。

The influence of the position of the collimating lens on the DLA system phase-locked in an external cavity has been investigated by using Fourier analysis, the angular spectrum theory of the plane wave and the light ray tracing method.

利用傅立叶分解，平面波传播的角谱理论和光线追迹的方法讨论了在DLA外腔锁相中准直透镜的位置对系统的影响。

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％。