Experimental results show that the exhaust tuning chamber can improve the engine performance at the middle low speed range.
试验表明，采用排气调谐腔能有效改善发动机在中低速区的性能。
The flow-induced self-sustaining oscillation and standing wave resonance of protruding and trap cavities are studied at the low speed range.
本文研究了低流速范围内突出式和陷落式圆柱形腔的流激自持振荡和驻波共振问题。
As for bang-bang control, DTC has poor performance in low speed range. ISR and DSFO can not completely avoid the dependence upon rotor parameters.
但DTC由于砰-砰控制影响了低速性能，ISR和DSFO仍然避免不了对转子参数的依赖。
The result shows that the dynamic performance of twelve-section control scheme is superior to that of six-section control scheme, especially in the low speed range.
结果显示，十二分区方案在动态性能方面，特别是在低速区，要明显优于六分区方案。
By means of the tuning chamber, the tuning speed range of exhaust system is widened. Thus, the two-stroke petrol engine performance at the middle-low speed range can be improved.
本文采用加装排气调谐腔的方法，拓宽了摩托车用二冲程汽油机排气系统的调谐转速范围，有效地改善了发动机在中低速区的性能。
Due to the large torque ripple of direct torque control in low speed range, a torque Angle adjustor based on fuzzy neural network and PI control was adopted to improve the control effect.
针对直接转矩控制低速时转矩脉动大的问题，采用基于模糊网络与PI控制结合的转矩角调节器来改进控制效果。
The device may increase the electric braking force of the locomotive at low speed range. It fulfills the requirement for locomotive listed in Artical 214 of Railway Technical Specificat on.
该装置能增加机车低速运行区的电制动力，满足了“技规”第214条对机车的要求。
Experiments show that the motor phase current controlled by this kind of SPWM inverter can be strictly sinusoidal and the running of the motor can remain steady for the ultra low speed range.
实验结果表明，这种SPWM逆变器控制的电机相电流严格正弦，能在超低速下平稳运行。
Its low radar cross-section, variable-geometry wings, advanced avionics, and afterburning engines combine to provide long range, maneuverability, high speed and survivability.
它采用低雷达截面、变后掠翼、先进航空电子设备以及加力发动机相结合，具有远程、机动性、高效的打击能力。
But the step motor efficiency is low, the ability is not big, load drag pulse equivalent cannot too big, speed range is not big.
但步进电机的效率低，拖动负载的能力不大，脉冲当量不能太大，调速范围不大。
Low speed wind tunnel experiment requires strict of the wind speed, which requires a wild range of wind speed, high precision, and quick adjustment.
低速风洞实验要求对实验段的风速有严格的控制，要求风速调节范围宽，精度指标高，调节速度快。
Our full range of engraving equipment, di needs of different industries, which feature is the speed of fast, high precision, performance stable to the cost low, the operation simple.
我公司雕刻设备品种齐全，满足不同行业的需求，其特点是速度快、精度高、性能稳定、运行成本低、操作简单。
This method is characterized by low determination limit, high precision, easy operation, high speed and wide range of determination being a ideal method for determining uranium content in ore samples.
该方法检出限低，精密度高，操作简单，分析速度快，测定范围宽，是测定铀含量的较理想的方法。
The LFM signal has a high resolution of range and speed, as well as low probability of intercept.
LFM信号具有更高的距离、速度分辨率，以及更好的低截获概率特性。
If the target speed is low or acquisition is early, impact will occur at a greater range.
如果目标速度较低或者捕获目标较早，那么命中点将发生在较远的距离上。
In this paper the error models of Angle, range and speed due to multipath effect in low Angle radar tracking are given.
给出了在雷达低仰角跟踪测量中由于多径效应影响而引起的雷达仰角、方位角、速度、距离误差的估算模型。
The sensorless of induction motor field-oriented control employing stator voltages and currents has difficulty in estimating rotor flux in the low-speed range.
在低速范围内，对无传感器感应电动机进行矢量控制时用定子电压和电流推算转子磁通是比较困难的。
The performances of diesel engine are improved by higher swirl in the operating range of low speed and high load.
在高速区降低进气涡流强度，发动机的性能和排放均有明显改善。
Its prominent advantages are broad tuning range, narrow passband, low power consumption, high speed continual electric-tuning, and simultaneous multiple-channel filtering etc.
其显著优点为；宽带调谐、窄线宽、低驱动功率、高速连续电调谐、同时的多波长选择等。
Compared with the general standard method, this method has more advantages such as operating easily, perfect accuracy, rapid speed, low cost, wide range of determination and so on.
与原标准方法相比，本方法具有操作简单、准确性好、分析速度快、分析成本低、测定范围宽等特点。
It shows that the MRCVT has a series of merits: easy to control, low control power, wide range of regulation, and stable speed regulation, etc.
试验证明，MRCVT调速具有控制简单，控制功率小，调节范围宽，调速平稳等一系列特点。
A simple and effective compensation method in low frequency to extend the range of speed is introduced in the paper.
本文将介绍一种简单有效的低频补偿方法以扩大其调速范围。
It has the key features of higher reproducibility, low false positives, speed and cost-effectiveness and a wide range of PCR products.
该方法具有重复性高、假阳性低、快速经济和PCR产物分布范围广等特点。
These motors are designed to accommodate a wide range of applications including direct drive servo systems, recorder drives, holding torque and high torque-low speed control systems.
这些电机的设计，以适应范围广泛的应用，包括直接驱动伺服系统中，记录器的驱动器，保持转矩和高转矩低速控制系统。
The low. speed range comes to 30 percent of synchronous speed of the machine.
低速工作转速范围达同步转速的30％。
Thus, the ac input motor and driver system has superior torque characteristics over a wide speed range, from low to high speeds, offering a large speed ratio.
因此，AC输入电机和驱动系统具有在很宽的转速范围内扭矩特性优越，从低到高的速度，提供了大速比。
The numerical simulation results show that the alterable assist effort range is increased from 1.2 to 3, and the maximal steering wheel force is 4n? M in low speed.
仿真计算结果表明优化后可变助力特性范围由1.2升为3，低速转向时最大手力达到了4 N 。
Pawnshops are characterized for their simple procedures, fast speed, low thresholds, flexible deadlines for redemption and a wide range of mortgage items.
从典当行业固有的经营特点看，具有信贷手续简单、速度快、门槛低、当期灵活、质押范围广泛等特征。
On the base of the active sonar theory, This thesis provide active ultrasonic detecting system that application in low-speed moving object of short-range in shallow sea surroundings.
论文文摘本论文基于主动声纳的基本原理，提出适用于浅海环境水下近程低速目标主动声探测系统。
The low-cost BLDC motors feature a wide selection range for power, speed, torque and size.
廉价的BLDC电机突出电力，速度，转矩和规模的广泛选择范围等特点。
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