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基本段
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  basic section
     The measurement of the velocity distribution of the jet showed that the structure of combined jets included four pans: beginning section, basic section, transition section and uniformly mixed section.
     结果表明,组合射流结构分为初始段、基本段、过渡段和均匀混合段.
短句来源
     The test results indicate that the structure of the additive jets can be divided into three parts, which are the beginning section , transition section and basic section. The dimen-sionless potential core length of the additive jet is longer than that of the water jet in the concentration range of the test, the concentration of the longest di-mensionless potential core is between 100 mg/L and200 mg/L, the length of the core shortens with the increase of concentration.
     结果表明,添加剂射流的结构可分为初始段、过渡段和基本段三个区域,在试验浓度范围内,添加剂射流比清水射流的等速核长,浓度为100—200 mg/L时等速核最长,无因次等速核长度约为5.39—5.46,之后随着浓度的增加,等速核逐渐变短。
短句来源
     Extension Classification Analyzing for Highway Basic Section Serving Level
     高速公路基本段服务水平的可拓聚类分析
短句来源
     The structure of the combined jets included beginning section,basic section,transition section and uniform mixed one.
     组合喷嘴射流由初始段、基本段、过渡段和均匀混合段四部分组成。
短句来源
     In the basic section and the mixed section, the dimensionless velocity distributions of the jets were similar.
     在基本段和均匀混合段中径向速度分布存在自模性.
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  “基本段”译为未确定词的双语例句
     At last, it suggests 100 meters long for extra lane of exit, 20 meters long for divide line and 150-300 meters long for waving area.
     本文通过研究提出,在城市快速路菱形立交,附加车道基本段长度推荐值为100 米左右,渠化长度20 米,交织区长度150-300 米。
短句来源
     The test results show that the structure of jet flow includes the beginning section and the basic one.
     试验结果表明,射流结构由初始段和基本段组成。
短句来源
     We bring forward the model and the expressions of density, temperature and pressure, Those are the fluid field's key parameters. All kinds of parameters, which lie at the export, before the Mach's disc and after the Mach's disc, can be worked out. On these bases, the structure of wake which includes the beginning's and the center's area may be educed.
     本文主要研究了火箭尾喷焰流场的形成过程 ,提出了尾喷焰流场的结构模型 ,给出了流场的关键参数 :密度、温度和压力的计算公式 ,可分别计算出喷管出口处、马赫盘波前、马赫盘波后的各参数 ,从而可进一步推导出初始段、核心区以及核心区以外的过渡段、基本段的流场结构 ,提高了模型法的计算精度
短句来源
     Different from the typical evaluation index-level of service,this paper adopts critical density ratio to evaluate the operation condition of urban highway basic sections,which synthetically reflects the requests of both road managers and users.
     与传统的服务水平评价不同,采用能够综合反映道路管理者和道路使用者共同要求的评价指标——临界密度比对城市快速路基本段的运行状况进行评价;
短句来源
     At last, this paper proposes 140 meter on deceleration lane length, the secondrecommends value is 60 meter where road space resources is serious restrict.
     本文通过研究提出,在城市快速路交通需求较大时,减速车道基本段长度第一推荐值为 140 米左右,当道路空间资源受到严重限制时,第二推荐值为 60 米左右。
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  相似匹配句对
     An unit—block is an element for operation of hydro—power station.
     机组是水电站运行的基本单元。
短句来源
     BASIC CHARACTERISTLCS OF THE KLIPPE STRUCTURE IN THE SOUTHWESTERN SECTOR OF THE LONGMEN MOUNTAINS
     龙门山南西飞来峰构造的基本特征
短句来源
     basic principles;
     基本原理 ;
短句来源
     (2)essential features;
     基本特征;
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     ON SECTION WEAVE
     论组织
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  basic section
In the basic section, where major myofibrillar proteins are present, bands' intensity increased with irradiation dosage.
      
One treatment group could read the basic section, then experiment briefly with the actual tool, and then read the advanced sections.
      
The basic section chosen was a simple lipped channel with an 80 mm web and 60 mm flange.
      
  primitive segment
For the second searching module, the system requires the parameters of the primitive segment and the tolerant number in a mismatching situation.
      


The splenic artery and its ramification were studied in 72 specimens, and the notches of the spleen were examined. Results are as follows:1. The splenic artery gives off only one major superior lobar artery in 3 cases; two branches, the superior and inferior lobar arteries in 63 cases; and three main branches, the superior, middle and inferior lobar arteries in 6 cases.2. The spleen can be divided into 3~5 segments according to the number and distribution of the splenic segmental arteries, and it may be further...

The splenic artery and its ramification were studied in 72 specimens, and the notches of the spleen were examined. Results are as follows:1. The splenic artery gives off only one major superior lobar artery in 3 cases; two branches, the superior and inferior lobar arteries in 63 cases; and three main branches, the superior, middle and inferior lobar arteries in 6 cases.2. The spleen can be divided into 3~5 segments according to the number and distribution of the splenic segmental arteries, and it may be further subdivided into Ⅲ_0, Ⅲ_1, Ⅲ_2, Ⅳ_0, Ⅳ_1, Ⅳ_2, Ⅴ_0 and Ⅴ_1 types according to the presence and number of the polar arteries (The Roman numerals indicate the numbers of the segemental arteries, while the Arabic numbers of the polar arteries).3. In most of the cases there are 2~3 notches on the anterior border of the spleen. In children the number of the notches on the posterior border is more than that in adults. An oblique or transverse fissure of the diaphragmatic surface is found in three spleens, which divides the spleen into the superior and inferior parts. The deep notches(≥8mm)may represent the surface marking of the lobes or the segments of the spleen.

以解剖、动脉造影和过氯乙烯动脉铸型方法观察了72例脾脏,结果为:1.儿童脾后缘切迹的出现率较成人高。深切迹与“少血管区”相当,可作为脾叶、段切除的参考标志。2.脾动脉近距分支22例,远距分支50例。分出一支脾叶动脉者3例。二支者63例。三支者9例。3.建议按脾段动脉的支数将脾分为三个基本段型:三段型、四段型和五段型。再根据有无上下极动脉将三个基本类型各分为3个亚型。4.脾内弓型动脉吻合较粗大,脾部分切除时需注意。

In this experimental study air is pushed through a compressor to a reservoir. Steady air jets out through a streamline nozzle to the atmos-phere, producing jet flow with a high velocity. The test results show that the structure of jet flow includes the beginning section and the basic one. In the beginning section there is no similarity between dimensionless velocity distributions, the energy is concentrated well, and the blowing and cutting capacities are great. In the basic section the dimensionless velocity...

In this experimental study air is pushed through a compressor to a reservoir. Steady air jets out through a streamline nozzle to the atmos-phere, producing jet flow with a high velocity. The test results show that the structure of jet flow includes the beginning section and the basic one. In the beginning section there is no similarity between dimensionless velocity distributions, the energy is concentrated well, and the blowing and cutting capacities are great. In the basic section the dimensionless velocity distrubu-tions are similar, and the energy is concentrated badly. The jet flow with a uniform velocity distribution works in the absence of blowing and cutting capacities. The test shows that the different sections of the jet flow should be used for different applications in industry.

本试验研究是将空气通过风机送往稳定箱,稳定后经过流线型喷嘴产生高速射流射入大气,射流马赫数Ma=0.141,雷诺数Re=8.48×10~4。试验结果表明,射流结构由初始段和基本段组成。初始段中,无因次速度不存在相似性;基本段中无因次速度具有相似性。初始段中聚能效果好,具有较大的冲击性和切割性;基本段中聚能效果差,无切割性,但速度分布均匀。因此,在工业上,不同用途时应采用射流的不同区段。

A nozzle with resonant cavity was designed and tested under pulse jet condition to give quantitative data. This pulse jet displayed the properties of pulsation and jet flew in general. The structure of the jet flow included a beginning section and a basic section. The basic section showed similar dimensionless velocity distribution. The mathematical expressions of velocity distribution and the change of axial velocity with jet distance were obtained. The conclusions could help the development of jet technology...

A nozzle with resonant cavity was designed and tested under pulse jet condition to give quantitative data. This pulse jet displayed the properties of pulsation and jet flew in general. The structure of the jet flow included a beginning section and a basic section. The basic section showed similar dimensionless velocity distribution. The mathematical expressions of velocity distribution and the change of axial velocity with jet distance were obtained. The conclusions could help the development of jet technology and its application to jet drilling.

对带有共振腔的特种喷嘴进行了试验研究。试验得到了脉冲射流并给出了定量数据。这种脉冲射流除了具有脉冲性能外,还同样具有一般射流的特性。射流结构分为初始段和基本段,且在基本段中射流存在自模性。本文给出了其数学表达式以及轴心速度沿喷距的变化规律。文中给出的脉冲射流的定性和定量结果将有助于射流技术的发展及其在喷射钻井中的应用。

 
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