水压

In this paper the fundamental equations are derived and the finite element software ABAQUS is adopted to calculate the time history of pore pressure.

本文通过对基本方程的推导，借助于大型有限元软件ABAQUS，进行了饱和土体在动力作用下孔隙水压变化的数值模拟。

It is stated systematically in the thesis the methods theories and measuring principle of all kinds of geostress determination technology. In particular the four methods recommended in 1987 by the committee of test method of the International Society of Rock Mechanics, i.e. two over-coring methods of strain relief in boreholes, hydraulic fracturing method and stress furbish measurement which measures the surface stress.

本文较为系统地、全面地介绍了当前国内外通用的各种地应力测量方法的理论、测量原理；特别就国际岩石力学学会试验方法委员会于1987年推荐的4种地应力测定方法(钻孔孔径变形测量法、钻孔孔壁应变测量法、水压致裂法以及测量岩体表面应力的应力恢复测量法)作了较为详细的叙述。

This device should be installed at the furthermost downstream end of the supply pipe or fixture where temporary spillage due to critical flow pressure conditions can be discharged harmlessly .

这种装置应该安装在供应管道或卫生洁具下游尽可能远，并且由于临界水压环境可能产生无害排放的暂时性喷溅的地方。

Companies give full play to the technological advantages of Tsinghua University, the traditional hydro-generator equipment for technical improvements, development, the introduction of efficient runner, has developed a hydraulic automatic adjustment of excitation automatic control, remote monitoring parameters and super output reactive Shuilun automation power generating equipment, power station can increase the overall economic efficiency of over 10%.

公司充分发挥清华大学的技术优势，对传统的水轮发电机设备进行技术改进，研制、引进高效转轮，开发了具有水压自动调整、励磁自动调控、参数远程监控以及超强输出无功功率的自动化水轮发电设备，可整体增加电站经济效率10%以上。

Based on the theory ang practice,hermetic seal form in puming test is introduced,It has great meaning to design and application of puming test .

在理论和实践的基础上，介绍了泵水在水压试验中的密封形式，对泵水设计和使用有一定的指导意义。

The block is then tested hydraulically to its full design test pressure on each stream separately.

然后，石块被分别在每条小溪上以水压的方法来测试它被设计出的最大限度的测试压力。

Cylinders have to be inspected and/or hydraulically tested at set intervals throughout their working life.

使用寿命内气瓶必须在规定周期内检验和水压试验。

After the cleaning, the boiler has to be flushed with fresh water over and over again and hydraulically tested.

锅炉清洗完后要用清水反复的冲洗并进行水压试验。

This enables it to flatten under hydraulic load forming a surface thatch to protect against erosion of the soil infill.

这样能够在水压之下变平，形成一个顶部的保护层，来确保土壤空隙的侵蚀。

In the spiral pipe heat exchanger exports terminal, the ammonia steam temperature has been heated up 85 ℃--95 ℃, by now, the ammonia steam had the 45kg-55kg/cm2 ammonia steam pressure, sent in the ammonia steam turbine through the constant temperature pipeline, impelled ammonia steam turbine revolving, led the generator electricity generation;After the ammonia steam makes the merit release energy, the temperature drop, the returns ammonia storage tank, passes through again adjusts the press pump to press into the spiral pipe-type heat exchangers to carry on the next circulation;Including the ammonia steam turbine entire ammonia steam road is becomes the independent closed cycle system, is isolates completely with the outside air;The ammonia steam only plays the carryhome and the shift energy role, in the electricity generation process does not consume the actuating medium, the stored energy carrier water also is only gets up the carryhome and the shift energy function,The waterway also is from becomes the independent closed cycle system, in the electricity generation process also the needless water consumption, through the actuating medium ammonia steam and the stored energy carrier water unceasing shuttle service, transforms through the heat interchanger the solar energy as the actuating medium ammonia steam heat energy and the kinetic energy,With the aid of the ammonia steam turbine heat - machine transformation function and the generator machine - electricity transformation function, has realized the solar energy hot - electricity entire conversion process, transforms continuously the solar energy into the electrical energy, power supply for foreign;The low temperature generating system must solve three big technical keys:One, the anticorrosion (has actuating medium has strong corrosiveness), two is Explosion-proof (Some actuating medium Can have the detonation with the air mix when divulging, controls warm malfunction, elevates temperature suddenly also can have detonation), three is guards against the revolution axis divulging

以太阳能低温发电系统为例，低温发电方法是这样进行的：以水作为储能载体的太阳能采集器将太阳能采集起来，将水温提升至85℃--98℃；用氨作为工作介质储于氨储罐及氨汽路中；采用螺旋管型热交换器；用调压泵将氨储罐中的氨汽压入螺旋管型热交换器的螺旋管内，用调压泵将携带太阳能的85℃--98℃的储能载体热水压入螺旋管型热交换器的螺旋管外壁空间进行循环式热交换，在热交换器的螺旋管出口端，氨汽温度已被加热到85℃--95℃，这时，氨汽具有45kg—55kg/cm2的氨汽压力，通过恒温管道送入氨汽轮机，推动氨汽轮机旋转，带动发电机发电；氨汽作功释放能量后，温度下降，返回氨储罐，再经调压泵压入螺旋管型热交换器进行下一次循环；包括氨汽轮机在内的整个氨汽汽路是自成独立的封闭循环系统，与外界空气是完全隔绝的；氨汽只起携带和转移能量的作用，发电过程中并不消耗工作介质，储能载体水也是只起携带和转移能量的作用，水路也是自成独立的封闭循环系统，发电过程中也不消耗水，通过工作介质氨汽和储能载体水的不断循环运行，通过热交换器将太阳能转化为工作介质氨汽的热能和动能，借助氨汽轮机的热—机转化功能和发电机的机—电转化功能，实现了太阳能的整个热—电转化过程，将太阳能源源不断地转变为电能，对外供电；低温发电系统要解决的三大技术关键：一是防腐（有的工作介质具有较强的腐蚀性）、二是防爆（有的介质泄漏与空气混合会产生爆炸，控温失灵，急剧升温也会产生爆炸）、三是防轴漏（汽轮机是动态旋转体，必须解决工作介质的防轴漏问题）。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。