发电的

This research improves the impedance marching method, by varying duty cycle in a DC-DC converter to make the apparent load impedance matching with current system impedance, and reach the mpp operation.

本论文是改善阻抗匹配法，使其在不同照度下皆能准确做最大功率点追踪，并且应用阻抗匹配法在实际的太阳光能发电系统，经由调整DC-DC转换器中的主动开关之责任周期来达到负载与太阳能板的匹配，达成最大功率传输。

This paper gives methods of determining the optimum vacuum of condenser that takes account of the save on cooling water, the methods can help reduce costs and environ.

文中提出一种考虑节水因素的凝汽器最佳真空的确定方法，为降低发电成本及减少环境污染提供了一项有效的途径。

This company has collected one batch for many years to be engaged in the generating set design and the production has rich experience's specialized technical talented person, and has a technology exquisitely, the well-trained post-sale service troop.

本公司汇集了一批多年来从事发电设备设计和生产的具有丰富经验的专业技术人才，并拥有一支技术精湛、训练有素的售后服务队伍。

Lifting the company as a result of non-lifting experience of similar models, the need for carefully lifting program to explore and experiment, with the result that the project had of hoisting the delay is better than the original plan. May 17, in the lifting process of lifting equipment as a result of failure, leading to the surface of leaves and fairing minor injury, and the remaining components of injury does not appear, at present the company in accordance with the guidance of manufacturers fairing on the surface of leaves and damage has been repaired, to ensure that follow-up after repair will not affect the work of lifting and running power.

由于吊装公司无同类机型的吊装经验，需对吊装方案进行谨慎探索和试验，致使项目吊装较原计划有所延迟。5月17日，在吊装过程中由于吊装设备出现故障，导致叶片和整流罩表层出现轻微损伤，其余部件未出现损伤，目前公司按照生产厂商的指导对叶片和整流罩表层的损伤已修复完毕，以确保修复后不会影响后续吊装及运转发电工作。

The re is a low-head runoff electric station at lower reaches of principal river and the workshop is the style of riverbed. A successful example of dredging tail water riverbed with the blasting technology in an electric power plant is introduced with the measure of drilling dynamite for enhancing dynamoelectric benefit in the paper. The construction process flow, detonating parametric design and the security issues of the underwater demolition are discussed in detail and it will give light to the similar project.

摘 要：位于下游干流上某水电站是一座低水头径流式电站，厂房为河床式，为了提高机发电效益，本文结合了在某电厂用爆破法疏挖尾水河床的成功实例，利用钻孔爆破法对水下爆破进行施工，分别介绍了在该工程中进行水下爆破施工的施工工艺流程、爆破参数的设计以及水下爆破安全校核方面的，可供类似爆破工程借鉴。

Solar energy is considered to be one of the most promising green energy, at the same time the solar photovoltaic technology is one of the most potential of renewable energy technologies.

太阳能被认为是最有前途的绿色能源之一，太阳能的应用技术之一太阳能发电则是最有潜力的可再生能源利用技术。

Over the years, the Bulova watch have became known for their precise technology, and now these great watches use the latest solar power.

多年来，该布洛瓦钟表已成为闻名的精准技术，现在这些伟大的手表使用最新的太阳能发电。

The power coefficient expression of tip-speed ratio and pitch angle was deduced according to wind turbine aerodynamics.

风轮机的空气动力特性决定发电机的控制指标和控制方式，是研究风力发电系统必须面对的问题。

Because the price of photovoltaic cell is expensive and conversion efficiency is low presently, the Maximum Power Point Tracking is absolutely necessary, in order to decrease system cost and increase efficiency, The paper focuses on the stand-alone photovoltaic system and analyzes it with theory.

本文以独立光伏发电系统为研究对象，对其进行了理论分析，从系统的参数选择、拓扑结构、控制策略、最大功率跟踪及蓄电池的保护等方面作了详细的分析和研究。

There is an important directive significance to exploit The Major Planet Carriers structure used in more powerful Aero-generator.

基于精确载荷的大行星架拓扑优化结果对于开发更大功率的风力发电增速器行星架结构具有重要的指导意义。

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。