低压系统

Equip with the high and low pressure water pump pressure supply device in system, the test medium circulating stage use.

系统内配置高，低压注水泵供压装置，试验介质循环贮存使用。

Considering the complex environment of power line carrier communication, this paper proposes and implements a computer simulating system, represents the simulation algorithm for dynamic model and noise, as well as an application example.

针对低压电力线载波通信的复杂环境，本文提出并实现了一种计算机仿真系统，给出了动态模型和噪声的仿真算法，以及具体应用的示例。

a scheme of channel estimation using cyclic prefix based on the measurement of the low-voltage power line channel model is presented.after obtaining the frequency response of pilot sub-channel under the state of comb-type pilot,the data sub-channel response is obtained by interpolating the frequency response in frequency direction.in the pilot-free data period,the estimation of the channel is carried out by using cyclic prefix in order to improve the performance of system error rate.

摘 要：通过实际测量给出低压电力线的信道模型，在此基础之上提出了利用循环前缀对信道进行估计的方法，即在梳状导频模式时，使用导频获得导频子信道频率响应后，对其在频域方向进行插值得到数据子信道响应，在其后没有导频的序列的数据周期内，使用循环前缀对信道进行估计，从而起到改善系统误比特性能的目的。

Cyclopentane is low-pressure material, and can adjust formation temperature and pressure of HFC-134a etc. gas hydrates. At the first time, we have measured equilibrium data of HFC-134a and HFC-152a gas hydrates below ice point, and equilibrium data of cyclopentane hydrate have been obtained(see Fig.1 and 2, respectively).

环戊烷是低压工质，可以调节HFC-134a等气体水合物的形成温度和压力等，我们在国际上首次对HFC-134a、HFC-152a水合物的冰点以下的相平衡及环戊烷水合物的相平衡进行了系统的测试，见图1和图2。

This high-pressure gas imports from high-pressure decompression chamber by cutting into the low pressure chamber, and by the export system to work.

这样进口的高压气体由高压室经节流减压后进入低压室，并经出口通往工作系统。

This high-pressure gas imports from the high-pressure chamber through the throttle after decompression into the low-pressure chamber, and the exit leading to the working system.

这样进口的高压气体由高压室经节流减压后进入低压室，并经出口通往工作系统。

This high-pressure gas imports from the high-pressure Reducing Valves chamber through the throttle after decompression into the low-pressure chamber, and the exit leading to the working system.

这样进口的高压气体由高压室经节流减压后进入低压室，并经出口通往工作系统。

This high-pressure gas imports from the hyperbaric chamber decompression by cutting into low pressure chamber, and the Instrumentation Ball Valves exit leading to the working system.

这样德标阀门进口的高压气体由高压室经节流减压后进入低压室，并经出口通往工作系统。

The aim of this study was an evaluation of the influence of HiLoon aerobic performance and its physical effects. Elite swimmers、 collegestudents major in physical education and rats were exposed to simulatedaltitude in a decompression chamber and the followings were investigated:(1) erythropoiesis and erythropoietin,(2)maximal oxygen uptake,(3)body weight and body composition,(4)serum parameters of metabolism andhormone,(5)erythropoietin gene expression in kidney and vascularendothelium growth factor gene expression in heart.1 Effects of simulated "living high-training low" on aerobic performancein elite swimmersFourteen swimmers (10 men, 4 women) from Shandong swimming team weredivided into two groups: experimental group (living high-training low,n=8,6men,2women),living at a simulated altitude of 2,800m for 13 to 14 hours per day for 3weeks in a decompression chamber and training at sea level; control group(living low-training low, n=6,4 men,2 women),living and training at sea level.

为系统探讨高住低练对机体有氧能力的影响及其机制，本研究利用低压舱来模拟高原气压条件，分别以优秀游泳运动员、体育专业大学生和大鼠为实验对象，从以下几个方面来初步探讨模拟高住低练对机体的影响：(1)红细胞生成和EPO，(2)最大摄氧量和无氧阈，(3)体重和身体成分，(4)血清物质代谢指标及激素水平，(5)大鼠肾脏EPO和心脏VEGF基因表达。1 模拟高住低练对优秀游泳运动员有氧能力的影响 14名山东省游泳队运动员(男10人，女4人)，随机分为两组：实验组(模拟高住低练组，男6，女2)和对照组(低住低练组，男4，女2)。

The author develops the gating system module, casting processing drawing and card.

论文中作者在低压铸造工艺设计中进行了浇注系统模块的开发，及铸造工艺图、工艺卡的生成。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。