查询词典 a trace

In this paper, We introduce fake F-statistic and propose a dynamic Fuzzy K-means clustering analysis technology, this clustering technology can ensure a lest inner-cluster disperse matrix trace of final clustering result and partition the points in multi-dimension to different clusters with special numbers and get best cluster number.

利用文中基因序列图形表达建立H5N1病毒基因序列图形表达数据对本文聚类分析方法进行验证，结果表明该聚类分析方法具有较好的合理性。

A length without breadth or thickness; the trace of a moving point.

没有宽度或厚度的长度；移动的点的迹线。

It is the best proof of the propriety of such a course — as well as of the continuity and uniform character of human progress — that we can trace everywhere, disguised under a variety of symbolical forms in the higher layers of civilization, the rude modes of life and forms of law with which the examination of the lower makes us familiar.

它是这样一种过程的适当性的最佳证据——对人类进步的持续性和特征统一同样如此——这过程我们可以在每一个地方追踪到它，它被掩藏在文明的较高各层次中种种象征形式之下，掩藏在我们由检查文明的较低各层次而熟悉的野蛮生活模式和法律形式之下。

A decatalytic spectrophotometric based on a copper catalyzed redox reaction between potassium peroxydisulfate and bromcresol purple has been developed for the determination of trace copper in the percent of sulfuric acid.

在酸性介质中，以K2S2O8为氧化剂，溴甲酚紫为指示物质，Cu强烈阻抑K2S2O8氧化溴甲酚紫褪色反应，褪色反应程度在一定范围内随Cu浓度增大而降低。

Then it studied a method called intertrace sequence regulation suppressing multiple in detail, which advanced by Bruland. Through thoroughly analyzing its algorithm, researching actual processing effect, after making great improvement, this paper raised a new suppressing method called Seismic Trace Sequence Regulation.

然后详细研究了由 Bruland 等人提出的以样点空间调序方式压制多次波的方法，通过深入剖析其算法，研究实际处理效果，对原方法作了较大改进，提出了道序调整多次波压制法。

In 1956 Gilbert Plass was heir to a century of work that identified variations in the trace amounts of carbon dioxide in the atmosphere as a possible cause of ice ages and interglacial periods.

1956年的吉尔伯特·普拉斯深受一个世纪以来科学工作的影响，当时认为大气中微量二氧化碳的变化是引起冰川期和间冰期的因素之一。1861年约翰·丁达尔写道，大气中任何有放射活性的物质（水蒸气、二氧化碳、臭氧或烃类）数量发生微小的变化，都可能引起&地质研究所发现的各种气候变化……它们是真正的原因，只是有多大范围的影响还存在疑问。&

The author analyses and studies in detail through X-diffraction test of up to date special reserver samples and find that 1:1 regulation mix layers of corrensite and allevardite exists in some piecis of the eroded volcano tuff 's sandstone at the same time, and can appear continuously in a large amount In a certain limit, authors point out characteristic of corrensite and allevardite in this district and it's mining to genesis mineralogy that related to stratum water and trace element geochemistry characteristics.

作者通过最近的海拉尔盆地特殊储层样品的X衍射试验分析和详细研究，发现1：1规则混合层矿物柯绿泥石和钠板石同时存在于海拉尔盆地含火山凝灰质蚀变储层或非储层的某些井段中，而且在一定范围内的岩石孔隙中可以大量持续出现，指出了本区柯绿泥石和钠板石的组合特征，结合该区地层水和微量元素地球化学特征以及重砂特征等研究了柯绿泥石和钠板石的成因矿物学意义和其它石油地质意义。

According to studying the factors of using a series of rhodanine ramifications to determine metal ions by catalytic fluorescence method and by utilizing the strong catalysis of metal ions to potassium periodate oxygenating rhodanine, a catalytic fluorescence method of using the new type rhodanine ramifications to determine trace tin, antimony and cobalt was established.

首次研究了系列若丹宁衍生物在催化荧光法测定金属离子中的各影响因素，利用痕量金属离子对高碘酸钾氧化若丹宁具有强烈催化作用的性质，建立了新型若丹宁物质催化荧光法测定痕量锡、锑、钴的新方法。

On the basis of analyzing the construction characteristics and the working proce ss of a revolving spade soil opener a mathematical model was established to desc ribe spade moving trace.

在分析铲式成穴器的结构特点和工作过程的基础上，建立了打穴铲运动轨迹的数学模型并分析了打穴铲的运动规律和成穴机理。

On basis of the analysis for cores and well-logging, the authors have thoroughly studied the sedimentary facies types and characters of Chang 6 oil-bearing formation of the Baibao region with casting thin sections, SEM, trace elements and porosity and permeability analysis and a great deal of indoor testing data. The authors propose that the sedimentary facies type of Chang 6 oil-bearing formation of the Baibao region is a sublacustrine slump turbidite fan for the first time, and lithology is lower componential and textural maturities micro-fine feldspar sandstone primarily, with graded bedding, fluidified convolute bedding, slipping-cut and deformational structures, minitype syngenetic faults, flute cast, groove cast, load cast and other turbidite sedimentary facies signatures.

作者在岩心描述和测井分析基础上，结合铸体薄片、扫描电镜、重矿物、微量元素和孔渗分析等大量测试资料，对该地区长6油层组沉积相类型及特征进行深入研究，首次提出白豹地区长6油层组属于湖底滑塌浊积扇沉积体系，岩性以成分和结构成熟度均偏低的微－细粒长石砂岩为主，具粒序层理、液化包卷层理、滑动截切和变形构造、小型同生断层、槽模、沟模和重荷模等浊积沉积相标志。

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％。