并流

Therefore it is necessary to research the mechanism of greensand used for high compacted molding methods thoroughly.This subject is one section of the National Natural Science Foundation subject ""Ivestigation on Predicting Method and Mechanism of Springback for High Compacted Sand Molds"", followed of the other completed one named ""Research on Microdeformation of Molding Sand"". A serious of experiments has been done on the reequipped three axial machine under certain technological conditions, and the mechanics, material science, rheologic science. It is systematically studied that the influences on the springback of sand mold were caused by the main influence factors: pressure, compacted rate and the content of soil. Through the analyzed experiments' data, the experienced stress-strain relationship concerning the main influence factors were obtained;under different technical parameter, the springback and spingback's potential energy are compared, the differences and indifferences between them are found out, and the springback's mechanism is discussed;according to the tests' data of YangGuoping coming from Tinghua University, experienced formula of molding sand's springback displacement is induced, the displacement and springback are compared, the margin of error's reasons are analyzed, and they are tested and verified mutually.

本课题为国家自然科学基金项目"高紧实度砂型预测方法及回弹机理的探讨"的一部分，是已结题的国家自然科学基金项目"铸造型砂微变形的研究"的后继，运用力学、材料学及流变学理论，利用改装的三轴仪，在一定的工艺条件下，作了大量系列实验，系统的研究了压实比压、紧实率和膨润土含量对砂型回弹的影响；对实验数据进行了分析和处理，得出了型砂关于压实比压、紧实率和膨润土含量的本构关系的经验公式；把各工艺参数下的型砂产生的回弹量与回弹势能进行比较，找出两者存在的异同点，并对回弹机理进行了探讨；通过清华大学杨国平的实验数据，推导出型砂回弹位移场的经验公式，并与实验测出的回弹量进行比较，分析误差造成的原因，并互相进行了验证。

The isolated working heart model was set up, high-performance liquid chromatography were used to measure myocardial adenosine triphosphate,total adenine nucleotides, while left ventricular end-diastolic pressure,left ventricular developed pressure, and rate of change of left ventricular pressure were determined before and after preservation.

对照组用St Thomas停搏液停搏并保存大鼠心脏6小时；实验组在St Thomas液中加入前列腺素E1(5 μg/L)停搏并冷保存6小时，利用离体鼠心非循环式Langendorff灌流功能测定模型，测定左心室舒张期末压、左心室发展压和左心室压力变化率，并检测心肌细胞线粒体三磷酸腺苷、腺嘌呤核苷酸总量。

The mean velocity distributions in turbulent boundary layers of smooth surface and two different riblet surfaces are measured with IFA300 constant-temperature anemometer in low-speed wind tunnel to validate the full development of turbulent boundary laye. Friction velocity and wall friction stress of turbulent boundary layer are obtained with the least-squares fitted curve of the sublayer velocity distribution based on Spalding formula, and virtual origin position of riblet surface can be acquired accurately.

在低速风洞中来流速度一定的情况下使用IFA300恒温热线风速仪测量了光滑表面和两种不同尺寸的脊状表面湍流边界层平均速度分布剖面，并验证了试验段湍流发展的充分性；通过应用Spalding壁面公式使用最小二乘法精准拟合了实验测量的边界层内层速度分布曲线，得到了湍流边界层壁面摩擦速度并进一步求得湍流壁面摩擦应力，较准确地计算出脊状表面的虚拟原点位置，并通过与对数律公式拟合结果比较分析，证实了该方法更加准确有效。

In this paper an experimental model of airconditioning adjustment is established based on the Reynold criterion, Velocity distributions and dynamic properties with an Xhotwire probe and singlehotwire probes in an airconditioned room were measured.

该文依据雷诺相似准则，设计了办公房间实验模型，并利用&X&双斜丝探头和两个单斜丝探头对室内的三维湍流流场进行测量；通过CF-920频谱分析仪来分析流场内动态信号的频谱与相关性质。

In the first part of this paper , the need for structured software quality metrication is argued , and a framework for measuring it is provided .

并证明了它们在描述程序数据流，控制流及二者相互关系上的应用；为解决这类问题提供了一种新的统一的处理方法。

Thou best brought us indeed into a land that floweth with rivers of milk and honey, and hast given us possessions of fields and vineyards; wilt thou also pull out our eyes?

你并没有领我们到了流奶流蜜的地方，也没有给我们田地和葡萄园当产业啊！你想剜出这些人的眼睛么？

Thou best brought us indeed into a land that floweth with rivers of milk and honey, and hast given us possessions of fields and vineyards; wilt thou also pull out our eyes?

你并没有领我们到了流奶流蜜的地方，也没有给我们田地和葡萄园当产业啊！你想剜出这些人的眼睛麼？

Methods Seventy-three patients with HHD and 75 healthy subjects were examined by Doppler echocardiography.

应用多普勒超声测量 73例HHD和 75例健康对照组各心腔大小、瓣口血流速度和瓣膜返流，评价左室收缩功能，并利用三尖瓣返流速度计算肺动脉收缩压。

For example, if the bitstream corresponding to the odd frames is lost, the even frames may still be decoded and displayed, recovering the video at half its original frame rate.

例如，如果与奇数帧相对应的码流丢失，与偶数帧相对应的码流仍可以被解码并形成正确的显示信息，在保持视频原有帧速率一半的基础上对其进行修复。

Design and operation specifications of the converter set are put forward in light of the commission functions of it, and a exciting current control system with...

针对变流机组的使命功能提出了设计与使用要求，并研制了一套可靠性高、性能好的变流机组交流电机励磁控制系统。通过试验证明了理论分析的正确性

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷