查询词典 air pressure

Main research contents as follows:(1) The four destruction models and respective stability analysis methods are discribed in this paper, whose working mechnism and calculating methods are given. In addition, some defects of every method are also discussed ;(2) On the basis of traditional active soil pressure method and expirical siol pressure method , the calculating model of the laternal earth pressure which is a tetragon with the largest value in the center side is addressed.

主要工作如下：(1)本文给出了复合土钉墙的稳定性分析方法，该方法介绍了复合土钉墙的四种破坏类型，分析了每种破坏类型的受力机理，并给出了相应的计算方法和计算方法中的一些不足；(2)在传统的主动土压力和经验土压力的基础上，建立了土钉墙中间大、上下小的四边形状分布的侧向土压力的计算模式。

In addition, some defects of every method are also discussed ;(2) On the basis of traditional active soil pressure method and expirical siol pressure method , the calculating model of the laternal earth pressure which is a tetragon with the largest value in the center side is addressed.

主要工作如下：（1）本文给出了复合土钉墙的稳定性分析方法，该方法介绍了复合土钉墙的四种破坏类型，分析了每种破坏类型的受力机理，并给出了相应的计算方法和计算方法中的一些不足；（2）在传统的主动土压力和经验土压力的基础上，建立了土钉墙中间大、上下小的四边形状分布的侧向土压力的计算模式。

Using piezoelectricity, thermoelectric couple and scanning electron microscope, the pressure peak, temperature rise and components variation of hydroyl-terminated polybutadiene solid propellant processed with high-pressure waterjet are measured experimentally. Ignition modes of HTPB solid propellant processed with high-pressure waterjet are theoretically analyzed.

利用压电传感器、热电偶和扫描电镜测量了丁羟固体推进剂在高压水射流作用下的压力峰值、温度和组分变化，分析了丁羟固体推进剂在高压水射流作用下的点火模式。

Flexo business card printing and membership card making pressure adjustments is the crucial step of product quality, direct impact prints fine is good or bad, as printed on the roll and the spacing between the embossing roll is the same, you can choose to use 2.08mm (1.7 printing plate + 0.38 doubleside Strip) standard thickness of Feller gauge, so that both ends of the respective Feller gauge the same pulling resistance, at which point the amount of space is business card printing and membership card to make the best pressure value (but in actual production, you need to fine-tune your carefully at the operative level, it is necessary to the practical experience of technical personnel to obtain the best pressure value).

柔性版制卡和会员卡制作压力的调节，是产品质量的关键步骤，直接影响印品的精美好坏，印版辊与压印辊之间的间距是一样的，可选用2.08mm(1.7印版+0.38双面胶带)厚度的标准塞尺，使两端各自的塞尺拉动阻力相同，此时的间距就是制卡和会员卡制作最理想的压力值(但是在实际生产中，需要操作人员的仔细微调，那就需要技术人员的实际经验来获得最佳的压力值)。

Working Principle Transmitter is composed of sensor and electronic element circuit, pressure of measured medium directly applies on sensor s ceramic diaphragm, force diaphragm to displace tinily in proportion to pressure of medium, under normal working condition, diaphragm displace no more than 0.025mm, electronic circuit detects this displacement, and convert it into standard industrial measuring signal i.e.(4~20mA) corresponding to this pressure.

工作原理变送器由传感器与电子元件线路组成，被测介质的压力直接作用于传感器的陶瓷膜片上，使膜片产生与介质压力成正比的微小位移，正常工作状态下，膜片最大位移不大于0.025mm，电子线路检测这一位移量后，即把这一位移量转换成对应这一压力的标准工业测量信号即（4～20mA）。

Transmitter is composed of senselectronic element circuit, pressure of measured medium directly applies on senss ceramic diaphragm, force diaphragm to displace tinily in proportion to pressure of medium, under normal working condition, diaphragm displace no more than 0.025mm, electronic circuit detects this displacement, convert it into standard industrial measuring signal i.e.(4～20mA) corresponding to this pressure.

变送器由传感器与电子元件线路组成，被测介质的压力直接作用于传感器的陶瓷膜片上，使膜片产生与介质压力成正比的微小位移，正常工作状态下，膜片最大位移不大于0.025mm，电子线路检测这一位移量后，即把这一位移量转换成对应于这一压力的标准工业测量信号（4~20）mA。

Transmitter is composed of sensor and electronic element circuit, pressure of measured medium directly applies on sensor s ceramic diaphragm, force diaphragm to displace tinily in proportion to pressure of medium, under normal working condition, diaphragm displace no more than 0.025mm, electronic circuit detects this displacement, and convert it into standard industrial measuring signal i.e.(4～20mA) corresponding to this pressure.

变送器由传感器与电子元件线路组成，被测介质的压力直接作用于传感器的陶瓷膜片上，使膜片产生与介质压力成正比的微小位移，正常工作状态下，膜片最大位移不大于0.025mm ，电子线路检测这一位移量后，即把这一位移量转换成对应于这一压力的标准工业测量信号（4~20） mA 。

The choice of the transformer includes: Main transformer use the main technique in number, capacity, model number...etc. in set data of the transformer to really settle; The electricity lord connected the line to introduce primarily the electricity lord connects the linear importance, design according to, the basic request, every kind of merit and shortcoming and lords that connect the line form connects the linear choosing more, the lord that combine to establish the in keeping with my plant the request connects the line; The short-circuit galvanometer is regarded as the most important link, this thesis introduced the calculating purpose in short-circuit electric current, assumption term, general provision, the calculation, network transformation of a parameter detailed, and each calculation etc. knowledge that short circuit order; The choice of the high pressure electricity equipments includes the mother line, high pressure breaks the road machine and insulate the switch, electric current to feels with each other the machine, electric voltage feels with each other the choice principle of the machine, high pressure switch cabinet with request, and proceed to these equipments the school check with the related introduction in product.

变压器的选择包括：主变压器的台数、容量、型号等主要技术数据的确定；电气主接线主要介绍了电气主接线的重要性、设计依据、基本要求、各种接线形式的优缺点以及主接线的比较选择，并制定了适合要求的主接线；短路电流计算是最重要的环节，本论文详细的介绍了短路电流计算的目的、假定条件、一般规定、元件参数的计算、网络变换、以及各短路点的计算等知识；高压电气设备的选择包括母线、高压断路器、隔离开关、电流互感器、电压互感器的选择原则和要求，并对这些设备进行校验和产品相关介绍。

Auniformfast calculation model for CO2 thermodynamic and transport properties in sub-critical pressure region,covering pressure fromthe pressure of triple point to critical point,superheating of 0~200 K,subcooling of 0~87 K,was presented.

提出CO2亚临界压力区具有统一形式的热力性质和传输特性的显式计算模型。

Experimental results indicate that for the polystyrene particle with a larger size, Umf changes with p-0.3, and for the sand particle with a smaller size, Umf changes with p-0.21. An empirical equation about Umf is proposed based on the experimental data: Umf=μdp ρg｛［(34.15)2+0.05916×dp3 ρggμ2］12-34.15｝ It is found that the bed expansion height increases with the increasing of gas velocity, and increases with pressure for fixed value of UUmf, when the pressure exceeds 0.7MPa, the influence of pressure on the bed expansion height is weakened.

研究结果表明，大粒径聚苯乙烯颗粒的Umf与p-0.3成比例，小粒径石英砂的Umf与p-0.21成比例，并根据实验值拟合出压力下最小流化速度公式为： Umf=μdp ρg｛［(34.15)2+0.05916×dp3 ρggμ2］12-34.15｝床层膨胀高度随气速的增大而不断增高，在相同UUmf下床层膨胀高度随压力的增大而增高，在大于0.7MPa时，压力对膨胀高度的影响减弱。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。