查询词典 wind musical instrument

AR model in linear filter theory is adopted to simulate pulsant wind. Combined with some typical cable-membrane structures, research on self-vibration of the structure has been conducted. Based on the previous work, the influence caused by the vertical wind component on the membrane roofs has been analyzed in time domain. It includes the vibration laws of the structure under separate horizontal wind component, separate vertical wind component and the collective horizontal wind component and vertical wind component. Significant conclusions have been drawn from the analysis.

然后本文采用线性滤波器法中的AR模型对风速场进行了模拟；之后又结合典型的张拉索膜结构研究了膜结构的自振特性；在此基础上，本文研究了索膜结构在竖向脉动风影响下的风振响应特性，其中分别研究了张拉索膜结构在单独水平风，单独竖向风以及水平风和竖向风共同作用下的振动规律，得出了有关重要结论。

To get the biggest power coefficient at various of wind speed, put out the argument of controlling wind turbine according to the wind pressure which act on the wind wheel swept area. Design and make a wind turbine which can adjust pitch angle of oar leaves through various of wind speed, and make experiment of characteristic.

1引盲 传统的风力机优化设计方法是以桨叶各截面在设计风速处具有最大的功率系数为目标，设计是针对事先确定的一个设计风速进行的，风力机只能在设计风速点处获得最大功率系数。

This paper presents a wind vane sensors without the use of cases, combining with gyroscopes and hill-climbing algorithm to control the yaw institutions, can accurately capture the wind direction signal, rapid-conditioning the cabin of the deflection angle, so that wind generators wind wheel normal direction of the wind direction and change is always consistent for maximum capture of wind energy control strategies.

针对风力发电机组的风向变化绝对值小于15°的风能捕获率问题，提出一种在不使用风向标传感器的情况下，采用陀螺仪和爬山算法相结合的方法来控制偏航机构，能够准确的采集到风向信号，快速调节机舱的偏转角度，使风力发电机风轮法线方向与变化的风向始终保持一致，实现最大捕获风能的控制策略。

The complete wind turbine speed control firstly proposed here also improves the tracking effect of wind turbine rotating speed to variable wind speed. Wind turbine rotating speed synchronized power observer compensates the power ripple of wind turbine resulted in inverter dead time. A low pass filter used at the output of MPPT controller smoothes the speed reference, which makes the rotating speed of wind turbine more stable.

本文首次提出的变转速扰动的MPPT控制提高了风车最大功率点追踪的快速性和稳定性，风车完全转速控制提高了风车转速对变动风速的跟踪效果，转速同步风车功率观测法消除了逆变器死区所造成的风车功率波动的影响，带有低通滤波器的MPPT控制器使得风车的转速更加趋于平稳。

As a main manufacture of musical instrument,our products are harmonica,melodica,recorder,pitch pipe and other kinds of musical instrument.

江苏东方乐器是国内主要的乐器生产厂家，主营蜜蜂牌，敦煌牌，金榜牌口琴，口风琴，校音器，二胡等民族乐器，产量和品质均居国内同行前列。

It was due to Liu Tianhua that erhu, a folk musical instrument, becomes a solo musical instrument at the concert.

二胡是我国流传较广的民族拉弦乐器之一。它的历史悠久，源远流长。

Measure by mational light industry musical instrument quality testing center qualified,and musical instrument quality offer high evaluation of the surver report in Chinese,regard as "the famous brand" by the industrial and commercial bureau of the city.

经国家轻工业乐器质量检测中心检测合格，并在中国乐器质量调查报告中给予了高度评价，被市工商局认定为"知名品牌"。

A music master plays musical instrument on the ave, what the people on the street thinks he is played is the musical instrument of the lute, trichord and so on, the person that appreciation comes to before is very much, but listen to tweedle delicate insipidity, everybody does not like this kind of music, left gradually.

导读：有一个琴师在大街上弹琴，街上的人们以为他弹的是琵琶、三弦之类的乐器，前来欣赏的人非常多，但一听琴声清淡无味，大家都不喜欢这种音乐，便渐渐地离开了。听琴

The whole contents were divided into six chapters. Chapter one is instruction, explains research motive and the purpose of study. In recent years the government vigorously promoted training policy of talented person -"A child has one kind of musical instrument; a school has a music mass organization." The result causes population increase that student play musical instrument in elementary school. Researcher has concentrated the string orchestra teaching in elementary school for many years. Researcher tries to provide the related information of string orchestra training by discussing this paper. That can help the promotion and development of the string education in elementary school.

本论文共分为六章，第一章绪论，说明本论文之研究动机与目的，基於近年来政府大力推广「一人一乐器，一校一艺团」之人才培训政策的结果，使得学习乐器的小学生人数增加，因此，笔者於多年来投注於国小弦乐团教学，拟藉此论文之研究讨论，提供弦乐团训练之相关资讯，以助於国小弦乐团教育之推广与发展。

Through efforts made by folk artists in Lhasa, the singing and dancing art was later performed to the accompaniment of a band composed of bamboo flute, six-stringed musical instrument, yangchin,jinghu and strings of bells, compared to performance performed to the accompaniment of a six-stringed musical instrument only in the past.

在它的流传过程中，经过拉萨的民间艺人不断创作改编，发展并扩大了原来乐队的形式，由原来只用六弦琴伴奏逐步演变为现在的包括以竹笛、六弦琴、扬琴、京胡、串铃等乐器进行伴奏的歌舞形式。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。