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From the key technologies of improving transf ormer reliability s uch as technical parameters,product structure and design,the research and develo pment conditions of 370 MVA/500 kV single-phase main transf ormer were in troduced in detail,which is the f irst one f or f orming a complete set o f 1 000 MW super supercritical generating unit made by domestic manuf acturer independently.

介绍了国内自行研制的首台与1000MW超超临界发电机组配套的单相370MVA/500kV主变压器的研制情况,从技术参数、产品结构、设计中为提高变压器的可靠性而采用的关键技术等方面作了详细分析介绍,给出了该产品的试验结果分析及当前安装运行状况。

The corresponding numerical algorithm is developed. The responses of pearlitic steel BS11 and single-phase hard-drawn copper subjected to asymmetrically cyclic loading are analyzed.

采用上述方法,分析了珠光体钢(BS11)和单相冷拉铜板受非对称循环载荷作用下的响应,分析结果和实验结果一致。

The results show that the Bi1.5ZnNb1.5O7 nanopowder with cubic pyrochlore phase can be obtained by HTM, and its morphology is of granular shape.

结果表明:采用水热法可合成单相立方焦绿石结构的Bi1.5ZnNb1.5O7纳米粉体,粉体呈颗粒状。

In actual reactors, the cooling condition outside the hexcan-wall of blocked fuel subassembly is analogous to its counterparts in the SCARABEE BE+ experiments. The upward and downward heat transfer could be neglected, while the radial heat transfer plays a key role in slowdown the accident scenario. As time goes on, the dominant radial heat transfer mechanism is liquidus sodium convection at first, and then gradually transforms into sodium condensation near the inner surface of the hexcan-wall, and finally becomes volume heated boiling pool convection.

对实际快堆中发生全堵的燃料组件而言,其外部的冷却条件与SCARABEE BE+系列实验非常相似;2)堵流组件向上和向下的传热可忽略不计,径向传热对事故有较强的延缓作用;3)随着时间推进,径向传热的主导机理依次为液态钠单相对流、钠蒸汽在组件盒内壁冷凝、体热源沸腾池散热。

In this paper, based on analysis the characteristic of direct-drive WPGS and other devices, the main circuit structure, which composed of three-phase full bridge rectifier, sepic chopper and single-phase full-bridge inverter, is presented.

本文在详细分析直驱风力发电系统特点和已有逆变装置的基础上,确立了三相不可控整流桥+SEPIC变换电路+单相全桥逆变电路的逆变装置主电路结构。

Effects of light on anaerobic digestion process of spartina alterniflora were studied by batch model under the temperature of 35℃.

在中温(35℃)条件下,应用批式单相厌氧消化技术,考察了光照对互花米草厌氧消化过程的影响。

The whole PWM circuit contains two subcircuit, the front-end is PWM module that make up of the counter that based on nine MOSFET True-Single-Phase-Clock D flip-flop; the back-end is demodulated module, which is consist of a three order Chebyshev low-pass filter used trans-conductor capacitor. All the subcircuits are simulated. At last, an approving simulated result of the whole circuit is given too.

在调制部分,利用九管单相时钟D触发器构成计数器,并由此组成了脉冲宽度调制电路,同时给出了在典型温度下的仿真结果;在解调部分,介绍了低通滤波器从无源到有源的设计方法,设计了三阶切比雪夫低通跨导电容滤波器,同样给出了相应的仿真结果;最后,作为将脉冲宽度调制电路和滤波器作为整体电路,以脉冲调频波为输入进行了仿真,取得了令人满意的结果。

Methods The symptomatical difference and its effect were analyzed by using Meta-analysis in 9 studies consistent with the standard published in domestic journals.

方法应用Meta分析对国内符合标准的9项研究进行分析,比较双相与单相抑郁患者的症状学差别以及差异的效应。

Therefore, it is difficult for us to make a diagnosis of synovial sarcoma in clinical practice.

形态变化多样,差异很大,特别是一些单相分化及分化程度较低的滑膜肉瘤,临床诊断较困难。

To study whether the change of transmural heterogeneity of ventricular repolarization plays an important role in the occurrence and mechanism of ventricular fibrillation in rabbit models with congestive heart failure.

目的 研究充血性心力衰竭模型左心室三层心肌之间单相动作电位的改变,以探讨充血性心力衰竭易发心室颤动的基础电生理机制。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。