查询词典 pumping-back method

In this paper The relation between optimal coefficient of performance and rate of pumping heat of an endoreversible Carnot heat pump is derived.

本文导出内可逆卡诺热泵的最佳性能系数与泵热率间的关系。

Radiation from a fiber coupled diode (core diameter 0.4 mm, N.A. 0.3) is coupled into Tm5% at.,Ho(0.5% at.∶GdVO4 crystal by a pair of achromatic lens for end pumping. Output power of 3.6 W at 2.048 μm is obtained under pump power of 14 W and emission wavelength of 794 nm. The optical-optical conversion efficiency is 25.7% and slope efficiency is 26.6%.

在液氮制冷晶体条件下，利用光纤耦合激光二极管及消色差光学耦合系统端面泵浦双掺5％Tm，0.5％Ho∶GdVO4晶体，在泵浦功率14 W、泵浦波长794 nm时，实现了2.048 μm激光输出，连续运转输出功率3.6 W，相应的光光转换效率为25.7％，斜率效率26.6%。

The laser optically pumped cesium magnetometer is a magnetic measurement instrument that is used to measure the absolute total intensity magnetic field, it is based on that the energy levels of cesium atoms in a magnetic field produces Zeeman effect and makes use of the principle that laser pumping and the RF magnetic field produce magneto-optical double resonance to make.

激光铯光泵磁力仪是一种用来测量磁场总强度的绝对磁测仪器，它是以铯原子的能级在磁场中产生塞曼效应为基础，利用激光泵浦和射频磁场产生光磁双共振的原理而制成的，激光泵浦铯原子是磁力仪结构的核心部分。

My best trades in recent years were in the euro and gold, as the Fed keeps pumping liquidity into the system as if we were a Weimar republic.

最近几年我最好的交易是欧元和黄金，美联储不停地注入流动性，似乎我们是韦玛共和国。

Sewage treatment plant phase ii rush period sewage treatment plant phase ii rush period qiqihar in heilongjiang news april 19 hearing yesterday morning,reporters at the city＇s bureau of the construction of urban sewage treatment center phase ii construction site to see more than 470 construction workers are in full swing biochemical pool,drainage pumping station,sewage pump pond 13 projects such as single pile foundation construction,7 sets of large hammers,3 large excavators,a national taiwan university,20 sets of cranes and heavy goods vehicles are operating at full capacity 24 hours with classes rush period.

污水处理厂二期工程抢工期黑龙江新闻网齐齐哈尔重庆自来水19日讯昨天上午，记者在市建设局自来水的中心城区污水处理二期工程施工现场看到，470多名施工人员正紧锣密鼓地进行生化池、排水泵房、自来水泵池等13个工程单体的桩基础施工，7台大型打桩机、3台大型挖掘机、1台大吊车和20余台重型给排水暖通正开足马力24小时连班抢工期。

He said."Even against San Marino I can feel the adrenaline is pumping."

他说，&即使只是跟圣马力诺，我也可以感觉到激情在上涨&

Workers built a huge system of waterways and pumping stations to control the overflow of Lake Okeechobee, north of the Everglades.

工人建立了一个庞大的水路系统，抽水站，以控制溢出奥基乔比湖以北的沼泽地。

It also has oil and gas, which a consortium led by BP is extracting from the Caspian Sea and pumping through new pipelines across Georgia to Turkey and beyond.

它还盛产石油和天然气，隶属于英国石油公司，从里海开采出来，流经横穿格鲁吉亚的新管道，直通土耳其和其他国家。

In the load forecast method based on the ANN, all load data should be normalized firstly, and then accessional momentum method are compared with L-M Back Propagation algorithm in efficiency and precision, at last L-M Back Propagation algorithm is winner due to its better forecast effect.

在基于神经网络的负荷预测方法中，首先对数据进行归一化处理，然后分别采用附加动量法和L-M 规则修正的误差反向传播算法，并对两种算法的计算速度和精度进行了比较，最终采用预测效果较好的L-M 规则修正的误差反向传播算法进行负荷预测。

Through the comparative analysis of the earth pressure calculated by the different calculation methods, it is known that when the earth pressure behind the abutment of the integral abutment bridge under the action of rising temperatures is calculated, it is not proper to use the m method to calculate the resistance coefficients of the abutment back wall and column earth while the resistance coefficient of the abutment back wall earth can be calculated by the Broms method. It is proper that the resistance coefficients of the earth of the abutment and pier piles should be considered by the p-y curve.

通过对不同方法计算的台后土压力的对比分析，得知：在计算升温引起的整体式桥台桥梁台后土压力时，桥台背墙及台柱土的水平抗力系数计算采用m法是不适合的；桥台背墙后填土的水平抗力系数可采用Broms法计算；土对台桩及墩桩侧的水平抗力系数按p-y曲线来考虑是适合的。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。