下出

利用标准双方程紊流模型数值模拟了进口Fr1为819、淹没度为024、闸下出流形成的淹没水跃。详细介绍了数值离散格式特别是用VOF方法跟踪非恒定自由表面的数值方法。

The standard k - ε turbulence model was used to simulate turbulence characteristics of submerged hydraulic jump with the Froude number 8.19 and submergence factor 0.24 . The tracking method of the moving free surface was investigated .

振冲下出料施工工艺研究

Study on the Construction Techniques of Vibroflotation Bottom Feed

本文利用变区域上变分有限元方法求解了溢流坝自由溢流和闸下出流问题。

Using the variable domain finite element method , the problem of the flow over a gated or free spillway has been solved successfully .

电站汽轮机配备的凝汽器大多采用双流程，冷却水的流径有上进下出和下进上出之分。

Condensers , for matching steam turbines in power plants , are mostly of the double pass type , with cooling water either entering at top and leaving at bottom or vice versa .

他从床底下摸出一双鞋来。

He fished out a pair of shoes from under the bed .

猎猫的眼睛在灯光的反射下显现出绿色。

The eyes of a hunting cat flashed green in reflection of the lights .

机器人必须在千差万别的背景下识别出当事者、状况和可能的后果。

A robot has to identify the players , conditions , and possible outcomes for various scenarios .

1911年,一名维修人员把"蒙娜丽莎"藏在工作服下带出了卢浮宫。

In 1911 a maintenance worker at the Louvre walked out of the museum with the " Mona Lisa " , hidden under his smock .

方法对87例卵巢囊肿进行腹腔镜下剥出手术，严格把握操作要领

Methods : The indication , methods and outcome of87 patients undergone laparoscopic ovarian cyst divesting surgery were analyzed .

高粱不育系3A在热激（43～45℃）诱导下结出了种子，由不育系转变为可育系。

Sorghum sterile 3A line was induced to be fertile when it was heat shocked .

在自由边界条件下解出了钙钛矿结构有限尺寸晶体的简谐振动方程，发现许多简谐振子软模.用这些软模说明了钛酸钡晶体冷却时发生具有a畴和c畴结构的铁电相变。

The soft modes in a finite perovskite with free boundary were calculated , and they can be used to explain why that barium titanate crystal has a and c domain structures in ferroelectric phase transition while temperature reduces .

实验结果表明，用氧等离子体辅助电子束蒸发金属Zn后退火的方法确实可以在400℃的低退火温度下生长出结构和光学性质良好的ZnO纳米薄膜。

The experimental results show that we surely can get high quality nano-ZnO thin films at very low annealing temperature ( 400 ℃) by using plasma-assisted thermal evaporation of metallic Zn .

非理想组织的Ti-15-3合金在二段拉伸条件下表现出更好的超塑性。

Ti-15-3 alloy of imperfect structure represents better superplasticity after two-stage tensile test .

重组毕赤酵母在甲醇诱导下表达出NCL活性，最高酶活为2.94U/mL。

After induction with methanol , the recombinant P. pastoris expressed active NCL enzyme .

这种螯合物在一定条件下释放出Cr3+，它与HPAM交联形成胶态分散体冻胶。

The chelate can give out Cr ~ ( 3 + ) on some conditions so as to form colloidal dispersion gel cross-linking with HPAM .

在此工艺条件下腐蚀出了深度为230μm、表面粗糙度小于50nm的硅微腔。

The silicon microstructure of 230 μ m depth , and surface roughness less than 50 nm is manufactured .

介绍了开发定制的ASP及COM+对象，然后使用ASP脚本调用定制对象的方法创建网页，在Windows平台下开发出安全、高效、具扩展性的Web应用系统。

The article introduces the develop customized target of ASP and COM + , uses the method of ASP script to transfer the target of customizing to establish webpages , develops safely , high-efficient and having expanding Web application systems under Windows platform .

首先，在系统状态全部可测的情况下设计出控制器，并用Lyapunov方法证明对此控制器闭环系统大范围渐近稳定。

We first design a controller when all the states of the system are measurable and it is proved by means of Lyapunov function that the closed-loop system is asymptotically stable in the sense of large range .

ColiBL21（DE3）细胞，在IPTG诱导下表达出HA1蛋白，所表达的蛋白质分子质量约为37~40ku。

Coli BL21 ( DE3 ), and then HA1 was expressed after induced with IPTG . The molecular weight of expression protein was about 37 ~ 40 ku .

利用常压MOCVD技术在较低生长速率下生长出多种GaAs/AlGaAs多量子阱结构材料，利用低温PL谱和TEM对材料结构进行了表征。

Different GaAs / AlGaAs multi-quantum well ( MQW ) materials were grown by AP-MOCVD under very low growth rates . PL and TEM were used to measure and characterize the structures of the QWs .

斯氏按蚊叮咬伯氏疟原虫ANKA株感染的昆明小鼠18～21d后，在无菌条件下解剖出唾腺，制备子孢子悬液，接种于单层培养的胚肺细胞。

ANKA strain infected Kunming mice and after 18-21 days were dissected under aseptic conditions for preparation of a sporozoite suspension .

PEG与Chitosan间存在较强的分子间氢键，束缚和限制了复合物中PEG熔融态的平动自由，致使复合物在高温态下表现出固体化行为。

FT-IR investigation illustrates that there is strong interaction between PEG and chitosan based upon intermolecular hydrogen bonds , which restricts the freedom of the transitional motion of the PEG within the composite at its melting point and makes it exhibit solidification phase behavior .

聚合物分散液晶PDLC（Polymerdispersedliquidcrystal）是液晶微滴均匀的分散在聚合物单体中的复合材料，这种材料在电场的开关作用下显示出透明与散射两种状态。

Polymer Dispersed Liquid Crystal ( PDLC ) is a new kind of LCD mode and a compound material in which liquid crystal droplets is dispersed in the body of polymers . PDLC has two kinds state of transparence and dispersion under the switch function of electric field .

用改进的Brown－Ladner方法计算了6种国内与2种国外减压渣油及其以正戊烷为溶剂、在超临界条件下切割出的各馏分的平均分子结构参数。

The average structural parameters of the residues of six Chinese and two foreign crude oils and their sub fractions were calculated based on their 1 H NMR spectra with modified Brown Ladner method .

量价分离模式下军队出包工程造价管理浅析

Project cost management in model of the separation of quantity and price

悬吊圆环-平面索网结构在横向荷载作用下的出平面屈曲问题。

The out-of-plane buckling of Hung Ring-Plane Cable Net Structure under vertical load .

在最佳时窗下分析出了每首乐曲的最佳听闻混响时间。

Optimum listening reverberation time has been calculated in the optimum integration window .

灯光下现出的是年轻的医生鲁宾逊的面孔。

And revealed the face of young Doctor Robinson .

闸下自由出流的数值计算

Numerical calculation for determining the free streamline of the outflow under a sluice gate

基本上获得了在实际生产条件下压铸出合格的半固态零件的合理的工艺路线。

A reasonable processing for an eligible semi-solid component in practice was basically obtained .