压

We are also capable to design and make the extruding mould, metal die-casting, punching, pressing, extruding, grinding, lathing, plastic inject, blowing etc.

我们并且能够设计和制作模具，金属压铸，冲，压，车床，注塑，吹朔，等等。

Heart rate, systolic pressure, the first derivative of left ventricular pressure, coronary flow, and PR and QRS intervals were measured in isolated constant-pressure perfused, nonrecirculating Langendorff heart preparations.

心率、收缩压、+dP/dtmax 、冠脉血流及 PR 、 QRS 间期被测量于离体恒压灌流、非再循环豚鼠心脏标本。

In the process of investigation on the torsional effect of quartz crystal, mirror symmetric conservative law is applied to ascertain the connection between the physical characteristics of leftwards spiral crystals and rightwards spiral crystals.

面对工程界对左旋石英晶体压电性质的描述不统一的现状，从晶体螺旋对称的本质出发，应用宇称不变性明确地建立了左、右旋晶体这两种客观实在物质的物理性质之间的联系，给出了建立这种联系的方法，并应用到了左旋石英晶体的三阶压电张量和四阶弹性张量的确定中。

The company mainly produces air breathing apparatus, positive pressure air respirators, emergency escape breathing apparatus devices | EEBD, marine oil-water separators | Marine oil-water separator devices | Marine Bilge oil water separator devices, marine fire equipment | fire equipment, positive pressure breathing apparatus air cylinders standby, marine fire extinguisher, PQ8.C foam-type portable air gun device, the international shore connection, fire insulation clothing | clothing insulation, fire anti-chemical suits, many with water cannon, fire-resistant rope | refractory lifeline, explosion-proof lights, the release of hydrostatic pressure, and heat appliances, life jackets, life-saving thermal insulation suits, life buoy, life jacket lights, life buoy lights, liferaft lights, life raft racks, marine oil-water separator devices, marine red flame signal, Marine orange smoke signal, lifebuoy from the bright lights floating smoke signal, lifebuoy with orange smoke signal, Marine line-throwing equipment, marine life-saving throw rope, and marine oil-water separator devices, etc. Products.

公司主要生产的空气呼吸器，正压式空气呼吸器，紧急逃生呼吸器装置|EEBD，船用油水分离器|船用油水分离器装置|船用舱底油污水分离器装置，船用消防员装备|消防员装备，正压式空气呼吸器备用气瓶，船用灭火器，PQ8.C型手提式空气泡沫枪装置，国际通岸接头，消防隔热服|隔热服，消防防化服，多用水枪，耐火绳|耐火救生绳，防爆灯，静水压力释放器，保温用具，救生衣，保温救生服，救生圈，救生衣灯，救生圈灯，救生筏灯，救生筏架，船用油水分离器装置，船用红色火焰信号，船用橙色烟雾信号，救生圈自亮浮灯烟雾信号，救生圈用橙色烟雾信号，船用抛绳设备，船用救生抛绳器，船用油水分离器装置等产品。

The result of the limit element analysis validates the analysis of the mechanics about the double punch.

从本次试验结果来看，径向压裂和轴向压裂法的试验值比较接近，结果低于单轴拉伸试验，土梁弯曲法的

The pattern of camber die-drawing are optimized. The physical innate character of drawing with camber die is analyzed thoroughly. For the first time, the periodical relation between the limit drawing coefficient and the large longitudinal stress in dangerous section is established. Furthermore, the rationale to judge limit deforming degree is developed. Then, the limit drawing coefficient of drawing with camber die is proposed. Based on the criterion that the large stress in flange is smaller than that of limit value, the formula of drawing with camber die without wrinkles is deduced.

对拉深凹模的型式进行了优化；深入地分析了曲面凹模拉深成形的物理本质，首次定量地确定了极限拉深系数与危险断面最大径向应力的关系，提出了判断极限变形程度的依据，分析了极限承载能力，建立了曲面凹模拉深的极限拉深系数的表达式；以凸缘切向最大压应力小于凸缘切向压应力临界值为准则，推导出了曲面凹模拉深不起皱的理论表达式。

The plan and implementing procedure of air supply for the gate lintel of water transmission valves used in No.

阐述了葛洲坝1、2号船闸输水阀门门楣处加设负压板及补气系统的方案与实践，利用负压实现门楣自然补气，有效地减免了门楣等处的空化、声振及其造成的危害。

In the process of venting and exposure, the compressive component increases rapidly with the admission of room air and then reaches saturation, followed by a logarithmic decrement of the compressive state in the succeeding hours.

真空室放气和样品暴露大气的过程中，首先是压应力迅速上升，达到饱和状态，然后有一个与对数时间呈现线性关系的压应力衰减过程。

The coefficient of variation CV was lower than 5%, and comparing with that of ektacytometry, we found that there was a good correlation between the measuring results of the two methods.

该测量方法虽受红细胞压积和悬浮介质电导率的影响和限制，但只要在仪器测量范围内，严格控制压积的一致性，其测量的重复性和准确性是可以保证的。

This paper simplified process of spinning head according to elastic-plastic macro deforming finite element theory. The FEM software MARC is used to simulate the forming processing of thick wall head in drffereut teixiperature conditions in warm spinning.

文中，以弹塑性大变形有限元理论为基础，对封头温旋压成形过程做出合理简化，建立分析模型，利用非线性有限元分析软件MARC对不同温度状态下的厚壁封头温旋压成形过程进行了数值模拟。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。