查询词典 bleeding pressure

The pressure drop of the compound tray can be regarded as consisting of dry plate pressure drop, clear liquid resistance, liquid surface tension resistance, and packing pressure drop. The model that has established can fairly predict the pressure drop of the compound tray, the value calculated by the model compared with that detected by experiment is less than 20%.

复合塔板的压降可认为由干板压降、清液层阻力、填料层压降和克服液体表面张力的压降四部分组成，所建立的压降计算模型，能较好地预测复合塔板的压降，计算值与实验值误差在±20％以内，可用于工程设计。

By using the CFD software FLUENT, the inner-flow field of centrifugal fans with ruled-surface impeller versus with enveloping surface impeller has been simulated. The static pressure distribution, the dynamic pressure distribution, the total pressure distribution, the turbulent intensity and the speed vector of the two kinds of centrifugal fans are then analyzed and compared. From the calculating results, we found that the pressure distribution, the speed vector and other parameters of the two kinds of centrifugal fans are basically same. This implies that the tool-path generating arithmetic for the machining of the impeller can meet the aerodynamic requirements of the centrifugal fan. Furthermore the method can provide proof for designing department to establish sound manufacturing tolerance for impeller.

最后采用CFD软件FLUENT，利用标准k-ε湍流模型，采用分离隐式求解器，分别对直纹面叶轮离心通风机和包络面叶轮离心通风机整体风机内部三维流场和单个通道流场进行了数值模拟计算，在计算结果的后处理中，对相同坐标值处的静压力、动压力、湍流强度和速度矢量等参数进行了分析与比较，结果表明：在相同的计算参数条件下所得到直纹面叶轮离心通风机和包络面叶轮离心通风机内部流场差别不大，从而揭示所采用的叶轮数控加工的刀位规划方法的规划误差对流体机械动力性能的影响不大，这也为设计部门制定合理的叶轮加工公差提供了依据。

On the aspect of error compensation, the system using the geometric average sound pressure instead of the arithmetic average sound pressure to get the sound pressure of the measurement point. This method not only reduces the high frequency error in the sound intensity measurement, which compensates the finite difference approximation error, but also greatly reduces the computation of the sound pressure spectrum.

误差补偿方面，课题采用几何平均声压代替通常的算术平均声压来计算双传声器法的声场声压值，这样不仅可以有效的减少声强测量中的高频误差，对有限差分误差起到了补偿作用，而且还大大减小了声压谱计算中的计算量。

The SDB eclogites, on the other hand, were strongly overprinted by a high-pressure granulite-facies metamorphism under conditions of p=1.9~2.0 GPa and T=873~948℃, followed by temperature and pressure decrease to the amphibolite-facies. The process of temperature increase with decreasing pressure from UHP eclogite to high-pressure granulite suggests that the SDB eclogites exhumed at low speed and underwent strong thermal relaxation at a level of crust-mantle transition or thickened lower crust.

都兰南带榴辉岩折返过程中经历了高压麻粒岩相变质的改造，高压麻粒岩阶段的p-T条件为p=1.9~2.0 GPa，T=873~948℃，并进一步经历了角闪岩相退化变质，说明都兰南带榴辉岩折返速率较慢，发生了壳幔过渡带层次的强烈热松弛。

Therefore, a scroll compressor (40) is provided, which includes fixed scroll-pan (7) erecting and setting gyrate cover plate (7b) on mirror plate (8a); rotary scroll-pan (8) set relative to the fixed scroll-pan and capable of rotating; back pressure chamber (18) set on the back of the rotary scroll-pan, the pressure of which is between discharge pressure and suction pressure.

为此提供一种涡旋压缩机(40)，具备：固定涡盘(7)，其在镜板(7a)上立起设置有旋涡状的盖板(7b)；旋转涡盘(8)，其与固定涡盘相对设置且可以旋转；背压室(18)，其位于旋转涡盘的背面，压力处于排出压力与吸入压力之间。

The present invention selects and uses hereditary hypertension rat and rat with normal blood pressure to make hybridization, and the rat whose blood pressure is normal and arterial pressure susceptivity reflection sensitivity is less than 0.3 ms/mm Hg can be screened out from filial generation, bred and propagated, and repeatedly bred and propagated, after above 12 generations so as to obtain the invented pure rat with stable hereditary property and spontaneous arterial pressure susceptivity reflection functional defect.

本发明涉及医学实验动物模型技术领域，是培育用于心血管疾病防治研究的一种自发性动脉压力感受性反射功能缺陷的纯种大鼠的方法。本发明选用遗传性高血压大鼠和正常血压大鼠杂交，从子代中筛选出血压正常、动脉压力感受性反射敏感性低于0.3ms/mmHg的大鼠培育繁殖，并反复按此标准在其下一代中筛选、繁殖，经12代以上便得到遗传性稳定的自发性动脉压力感受性反射功能缺陷纯种大鼠。

In particular, some chronically ill patients with high blood pressure, high blood pressure because of the state has been compared to adapt, even if the blood pressure increased significantly, there is no clear feeling, which they think that their blood pressure is not high, so they delay treatment of hypertension.

特别是一些长期患病的高血压患者，由于对高血压的状态已经比较适应，即使血压明显升高，仍无明显的感觉，由此便认为自己的血压不高，于是便延误了对高血压的治疗。

Safety valve is opened by the automatic import of hydrostatic pressure relief protection device, Balanced Bellows Safety Relief Valvess, Closed it is the pressure vessel, one of the most important security annex, which function is: When the container pressure exceeds a certain value, the pressure on media's own auto - Open the valve to quickly discharge a certain amount of media.

安全阀是一种由进口静压开启的自动泄压防护装置，它是压力容器最为重要的安全附件之一，它的功能是：当容器内压力超过某一定值时，依靠介质自身的压力自动开启阀门，迅速排出一定数量的介质。

The influence of high temperature and high pressure on foaming agent's properties in opened and closed system, and influence of the change of foaming agent's properties on foaming capacity and foam stabilizing capacity are also studied. The multiple regression theory is used to establish the quantitative characteristic functions of foaming agent versus temperature and pressure. Based on the Gibbs Principle, the quantitative characterization is carried out on relation of foam system's free energy versus its surface tension, surface area and concentration, and the analysis of energy concluded that the disintegration of the foam is inconvertible. At the same time, the influence of change of foam's shape and structure on distribution of reservoir temperature and pressure is qualitatively described, and the coupling mechanism between temperature field, pressure field and chemical field is systematically expounded.

同时，研究了不封闭体系、封闭体系下高温、高压对发泡剂性质的影响，以及发泡剂性质的改变对其发泡性能、稳泡性能的影响；采用泡沫实验的相关结果，运用多元回归理论，建立温度、压力与发泡剂浓度的定量表征函数；基于Gibbs原理，对高温、高压下泡沫体系的自由能与其表面张力、体系中液体的表面积以及浓度关系进行定量化的表征研究，从能量的角度得出了泡沫衰变过程具有不可逆性；同时定性地描述了泡沫形态、结构的变化对油藏温度和压力分布的影响，系统地阐述了温度场、压力场、化学场间的耦合作用机理。

The observation results reveal the difference between surrounding rock pressures of shallow tunnel calculated by exiting methods and test results is large, pressure figure seems cat ear, surrounding rock pressure of deep tunnel belongs to clastic pressure, the test result is consistent with result by modified KAKE formula, the invert stress properties of shallow tunnel and deep tunnel are different, the axial force of lattice girder is at pressure in majority, and the stress of second lining is relatively small in loess highway tunnel.

实测结果表明：现有浅埋隧道围岩压力公式计算结果与实测结果偏差较大，其分布呈"猫耳朵"形状；深埋隧道围岩压力属形变压力，其实测值与修正卡柯公式计算结果较为一致；深埋与浅埋隧道中仰拱的受力性态有所不同；格栅拱钢筋轴力以受压为主；黄土公路隧道二次衬砌受力相对较小。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？