查询词典 under pressure

Improvement measures: fixture bellmouth pressure under the pressure when the deformation of the negative phenomena turned into a picture, production and quality control to use the morning time, full guidance to companies, Follow-up work station if found undesirable phenomenon is similar to the entire batch of back line for heavy industry processing.

改善措施：治具下压时将喇叭口压变形，将该不良现象拍成图片，生产及品管利用早会时间全员宣导，后续工站如发现类似不良现象则整批退产线重工处理。

It was found that increasing pressure for blank can improve the compactedness of blanks so as to make foam aluminium materials with homogeneous pores. Foaming temperature, as one of the main influencing factors on foaming process, should be controlled higher than the melting point of Al or Alalloy to a certain extant in order to keep a reasonable viscosity. Thus, the foam aluminum with homogeneous pores and high porosity is available. As shown by experiments, such materials should be made on conditions that they shall be protected with molten salt under 300?MPa pressure at 675～680?℃.

研究了粉末冶金法制备泡沫铝材料的方法讨论了发泡过程中的保护方式、制坯压力、发泡温度等参数对泡沫铝体积质量、孔隙率、孔结构的影响，并对发泡机理进行了探讨增大制坯压力使得金属坯致密，可以得到孔结构均匀的泡沫铝材料；发泡温度是影响发泡的主要因素之一，发泡温度控制在高于铝或铝合金熔点，同时保持熔体具有一定粘度的范围内，能够得到孔结构均匀、高孔隙率的泡沫铝材料实验结果表明：采用熔盐保护方式，在300MPa的压力下，温度在675～680℃时，可得到孔径均匀、孔隙率高的泡沫铝材料。

objective: to investigate diagnosis and treatment choice of detrusor hypoactivity with impaired contractile function on voiding function in benign prostatic hyperplasia.methods:the clinical date of 48 bph patients with dhic were analyzed,including clinical diagnosis,urodynamic parameters,treatment and follow-ups.results:37 patients with detrusor instability and over 40 cmh2o bladder pressure were treated successfully by turp.the time of indwelling suprapubic punctural cystostomy cathter was(1~8)weeks.11cases without di and under 40 cmh2o bladder pressure were treated by suprapubic punctural cystostomy,accepted the test of urodynamics after(1~3)months.7 cases with di were treated successfully by turp,4 cases without di were indwelled suprapubic punctural cystostomy cathter all life.conclusion:dhic worsens the voiding function of the patients with bph,and the test of urodynamic is helpful to diagnose and could provide more convinced evidences for treatment of patients.

分析膀胱过度充盈所致逼尿肌损伤，引起膀胱逼尿肌收缩无力良性前列腺增生48例患者的临床资料，包括诊断，尿动力学检查，治疗及随访结果。结果：37例经尿流动力学检查，诱发存在逼尿肌不稳定，伴膀胱内压达40 cmh2o以上，采取turp，术后留置膀胱造瘘管（1~8）周后全部拔除，排尿通畅。11膀胱内压始终未达到40 cmh2o，且在膀胱注水充盈过程中无逼尿肌不稳定出现，行膀胱造瘘后出院，（1~3）个月后经尿动力学检查复查膀胱逼尿肌收缩力，其中7例膀胱逼尿肌收缩功能有恢复，行经尿道前列腺汽化电切术治愈；剩余4例膀胱逼尿肌收缩功能几乎无任何改善。长期留置膀胱造瘘治疗。结论：良性前列腺增生导致膀胱过度充盈所致逼尿肌损伤，引起膀胱逼尿肌收缩无力患者，术前应用尿流动力学检查对膀胱逼尿肌损伤程度进行认真分析，可进行有针对性的治疗。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

Deep coal mines are under the complex mining environment conditions of high in-situ pressure and geotherm, as well as high methane content in coalbed and pore pressure dissipation.

根据我国煤炭资源勘探开发中存在的问题与现状，在深层煤矿床赋存规律、开采地质条件及综合探测研究方面，急待解决的关键科学问题是：a。

The results show that, for the first with no headwall, when there is no crosswind, it has small front face areas, so the aerodynamic resistance is the least. Since the second and the third have headwall, the front face areas are large, so they have bigger aerodynamic resistance. Under the condition of crosswind, as the third design option has the highest side beam, the area of positive pressure at the upwind is bigger, and the area of negative pressure is smaller when the bigger eddy area appears, so the side forces become larger. The first has the least side forces; the overturning moment of the first is the least.

研究结果表明：在无横风情况下，方案一中没有端墙，迎风面积较小，受到的气动阻力最小，方案二和三中平车有端墙，迎风面积较大，受到的气动阻力也较大；有横风情况下，方案三中平车侧梁较高，车体迎风面正压区较大，而背风侧产生较大的涡流区，在此区域内压力较小，故其横向力较大，方案一中平车侧梁没有加高，受到的横向力最小；方案一中平车倾覆力矩最小，稳定性最好。

Under the same pressure, coefficient of compressive deformation increases with increscent original water content of samples, the function between coefficient of compressive deformation and pressure can be used for

分析了增湿变形与加荷变形的关系，并建立了二者之间的换算关系式，可用于黄土路基增湿变形计算。

The results indicate that there is a change of burning rate pressure exponential of nitramine propellants, and the content of NGu can adjust the combustion rules Of nitramine propellants under low pressure.

结果发现：硝胺发射药在测试压力范围内有燃速压力曲线转折现象，并且NGu对低压下硝胺发射药燃烧规律有很好的调节作用。

Based upon oscillometric arterial pressure measurement and photoelectric plethysmography, a new arterial compliance detection device was developed. This device could realize pressing brachial artery and dynamic detection of the increment of PTT under different transmural pressure for hypertension group and control group.

基于示波法血压测量和光电容积脉搏波描记法(photoelectric plethysmography， PPG)设计了检测仪器，实现了对肱动脉加压动态检测，并在不同透壁压下对高血压组和对照组脉搏波传递时间增量进行测量。

Especially, it is found that there exists three types of relative permeability of water such as concave, convex to the water saturation ax and the reversed "S" pattern. The super-low permeability reservoir is sensitive to pressure, apparent with millipore undersaturation and water blocks. In this study, a new concept of irriducible undersaturation is brought up. And a new mode to describle the process of imbibition dynamics is used to reveal and confirm the mechanism of pinhole enveloping macropore as following: pendular ring of wetting phase gathers→it fills throat→it truncates nonwejting phase . The expression of pressure distribution and the equation of oil production are deduced under conditions of non-darcy linear seepage and non-linear seepage.

尤其发现水相相对渗透率曲线存在凹向、凸向含水饱和度轴及反S形三种形式；特低渗透储层的压力敏感性强，微孔隙的欠饱和及水锁效应显著，本文研究中提出欠束缚水饱和度的概念，引用一种描述渗吸动态即湿相液环聚集→充填喉道→截断非湿相的演化过程的新方法，更深刻地揭示和证明了&小孔包围大孔&机理；推导出了非达西线性渗流和非线性渗流条件下的压力分布表达式和油井产量方程。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。