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speed changes
相关语句
  速度变化
     Analysis of Full-length Speed Changes of Hurdling in the World Best Hurdlers'
     世界优秀跨栏运动员全程速度变化分析
短句来源
     The results indicate ∞H robust controller makes a great difference in keeping in check the speed changes resulting from pavement excitation.
     计算结果表明,该∞H鲁棒控制器能够有效抑制路面激励引起的速度变化
短句来源
     Research on Time-space Characteristics of Rhythm and Speed Changes of Domestic and Foreign Elite Athletes of Hurdle Event
     中外优秀跨栏运动员跑的节奏与速度变化的时空特征研究
短句来源
     This paper investigates the problems related to the engine's transient processes: the governor's dynamic properties, the hydrogen injection's performance, speed changes of the engine and the turbocharger, the moving of the working condition and coefficients of the turbocharger.
     该文研究了发动机瞬态特性的相关问题 ,如调速器特性、喷氢装置特性、发动机和增压器的速度变化 ,涡轮增压器的工况迁移和参数的变化等。
短句来源
     The tested values have proved that the bloodflow speed changes of the newborns are much faster than that of the children.
     这说明新生儿的血流速度变化较儿童快。
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  转速变化
     This paper presents a control method for generator outputing constant frequency and constant voltage in its stator side when prime mover's speed changes,and establizhes a vector control medel oriented by generator's stator voltage space vocters. And then the system graphic based on MCS196KC is shown.
     介绍了原动机转速变化的情况下,发电机定子端输出恒定频率、恒定电压的方法,建立了以发电机定子电压综合矢量定向的矢量控制模型,并给出了以MCS196KC为核心的实现此控制系统的硬件框图
短句来源
     When the wind speed changes,the output voltage of aerogenerator holds canatant,so that aerogenerator can supply power for the load in the low wind speed and protect the electrical insta llations and accumulator in high speed. The aerogenerator is efficient small in volume,light in weight,simple in structure and technology.
     在转速变化时,可保持输出电压恒定不变,从而保证在低风速时既可向负载供电,而在风速变大时,又可保证用电设备与蓄电池的安全,且具有效率高、体积小、重量轻、结构工艺简单等优点。
短句来源
  “speed changes”译为未确定词的双语例句
     The maximum rising speed changes of insider pressure of ventricle was higher than that in the heart failure group (4 202.8±457.1)3 862.1±436.6 mmHg/s P < 0.05.
     心室内压变化最大上升速率高于心力衰竭组犤(4202.8±457.1),(3862.1±436.6)mmHg/s,P<0.05犦。
短句来源
     The SEM photo shows that the diameter of primary particles of suspension PVC resin depend mainly on stirring speed under other factors fixed If stirring speed changes from 100 rpm to 400 rpm,the diameter of primary particle will change from 2.0μm to 0.6μm. With increasing of stirring speed dispersion agent in polymerlization system is acted by a shear force and interim layers of discontinuity is formed.
     扫描电子显微镜结果表明:悬浮PVC树脂的初级粒子直径在其他条件一定时主要依赖于搅拌速度,如果搅拌速度从100rpm变到400rpm初级粒子直径将从2.0μm变到0.6μm,随搅拌速度的增加聚合体系的分散剂受到剪切力的作用则形成不连续的表皮。
短句来源
     The analysis model for static wind nonlinearity of single cable plane cable-stayed bridge is established, taking comprehensive account of influences of the static wind load nonlinearity, geometric nonlinearity and also wind speed changes along the bridge structure height.
     综合考虑静风荷载非线性和结构几何非线性因素的影响,计及风速沿桥梁结构高度的变化,建立了单索面斜拉桥静风非线性的分析模型。
短句来源
     The results show that the vertical sintering speed changes notably with the proceeding of sintering process.
     结果表明:垂直烧结速度并非固定不变,而是随着烧结过程的逐步进行发生显著变化;
短句来源
     Robust Control of Auto Speed Changes Arising from Pavement Excitation
     路面激励下车辆速度鲁棒控制研究
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  speed changes
In this paper, we consider a queue whose service speed changes according to an external environment that is governed by a Markov process.
      
However, the tether shape and string vibrations can often be very important, particularly when the deployment/retrieval speed changes rapidly, or when external forces such as aerodynamic drag or electrodynamic forces are present.
      
We used a sonic flowmeter developed for this study to examine swimming speed changes of sharks held in artificial lagoons during diurnal dissolved oxygen changes.
      
Recent circulation changes in daily gridded pressure data, used as an indicator of wind speed changes, support the results by explaining some of the trends.
      
effects by means of impeller speed changes are inappropriate.
      
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This Paper analyses the advantages and disadvantages of the governors with step speed change and the stepless speed change that are generally adoptedon diesel engines. It is specially pointed out that there are many serious siortages on the governors of the step speed change type. The writer thus suggests a digital control technique for the governors with stepless speed change.The principles regarding the digital control technique, stop motor control etc, applied to the governors, are...

This Paper analyses the advantages and disadvantages of the governors with step speed change and the stepless speed change that are generally adoptedon diesel engines. It is specially pointed out that there are many serious siortages on the governors of the step speed change type. The writer thus suggests a digital control technique for the governors with stepless speed change.The principles regarding the digital control technique, stop motor control etc, applied to the governors, are basically analysed.The detail of the whole system is illustrated by figures. Furthermore the writer points out the advantages found in the operation of the control system used for the governors which are installed on the chinese-built Dongfeng 4 diesel-electric locomotives and on the diesel—generator train sets.The paper finally explains how to further improve the systemand simplify the construction of the governors, thus making better the automatic control performance of the system.

本文分析了柴油机上一般采用的有级调速器和无级调速器的优缺点,特别指出有级调速器所存在的许多弊病,提出了运用现代数控技术的一种新型无级调速器。本文对这种新型调速器所采用的电子系统、步进电机等控制原理作了基本分析,同时用图具体说明整个结构。另外,还介绍了在东风_4型內燃机车上和发电列车上装用这种调速器的控制系统的优越性。文章最后指出了该系统的进一步改进措施,简化调速器的传统结构,增加其自动控制性能等问题。

In this paper the following points have been dealt with:1. A brief description of the significance of hairness in production and scientific research;2. The concept of hairness;3. Guide-lines in designing the photoelectric hairness tester its construction and operating principles;4. A brief explanation of the functions of various constituent parts of the tester;5. The tester can be used as a projecting-visual one with 30x magnification, or as a measuring instrument, with the distinguishing features of hairness...

In this paper the following points have been dealt with:1. A brief description of the significance of hairness in production and scientific research;2. The concept of hairness;3. Guide-lines in designing the photoelectric hairness tester its construction and operating principles;4. A brief explanation of the functions of various constituent parts of the tester;5. The tester can be used as a projecting-visual one with 30x magnification, or as a measuring instrument, with the distinguishing features of hairness index being digital-displayed, and continuous regulation of the length of hairness and stepped speed change of the process of yarn.

本文介绍了“纱线毛羽测试仪”的设计和具体结构及原理。仪器能直观毛羽情况,能测量纱线直径,并自动计数毛羽数,有数字显示。检测的毛羽投影长度为连续可调。纱线行进速度可分档变速。

Spectroheliographic scanning (i.e. Spectroheliogram) is an interesting effective observational means. The photography has been adopted for local regions of the Solar disc on the Na line (NaID25890A) of a 40-cm horizontal spectrogaph of Yunnan Observatory.The basic principle is that the camera in the line focal plane of the spectrograph should make the stable homogeneous synchronous movement in the same direction as the solar image in the telescope focal plane (i. e. the incident slit plane). Therefore, a spectroheliograph,...

Spectroheliographic scanning (i.e. Spectroheliogram) is an interesting effective observational means. The photography has been adopted for local regions of the Solar disc on the Na line (NaID25890A) of a 40-cm horizontal spectrogaph of Yunnan Observatory.The basic principle is that the camera in the line focal plane of the spectrograph should make the stable homogeneous synchronous movement in the same direction as the solar image in the telescope focal plane (i. e. the incident slit plane). Therefore, a spectroheliograph, which is used to control the movement of the camera, by the mechanical speed changes of a synchronous motor, is used to substitute for the original photographic device of Na bands. The slit of the spectroheliograph is aligned with the line core of D2 and move in the line dispersion direction. The micrometer screw, which is located on the mirror mounting in front of the incident slit of the spectrograph and enables the mirror to turn round the vertical center, is driven by a stepping motor so that the solar image can make transverse movement perpendicular to the optical axis. The stepping motor works in double triple-time and the circuit consists of a pulser, a commutator distributar and a power amplifier. The whole control unit enables the solar image and the camera to move syschronously in the same direction.The test indicates that the instrument is in better state (the parameters are stable and the synchronous performance is better). Under the mesoclimate conditions, in the active region data obtained the distinguishable details may be at least 4"-5" and the inhomogeneous structure surrounding the active region can be resolved.

本文简介了太阳金属钠(NaID_25890A)线光谱单色像的仪器装置和试验结果。

 
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