恒定

以每小时50英里的恒定速度行驶

travelling at a constant speed of 50 m.p.h.

所有滤波器的Q值恒定，纹波极小。

All filter Q value is constant , the ripple minimum .

我一直在致力于推翻有关意义恒定性的谬谈。

I have been working on exploding the myth of fixity of meaning

温度通过热传导变得一致，直到最终达到恒定状态。

Temperature becomes uniform by heat conduction until finally a permanent state is reached .

那栋砖砌的房子里全年温度恒定。

The brick-built property keeps the temperature at an even level throughout the year .

工作时周围环境温度恒定有多么重要呢？

How important is it to have an even temperature when you 're working ?

因此，大功率LED驱动应尽可能保证流过LED的电流维持在一个适当的恒定值。

Therefore , LED drivers should maintain the current appropriate and constant as much as possible .

ATM网络中恒定比特率和可变比特率语音通信

CBR and VBR Speech Communications in ATM Networks

结果表明正常儿童至成人血浆ET水平较为恒定；

These results suggest that the plasma ET level is constant in normal children and adults .

结果：NOS阳性神经细胞在翼腭神经节中呈不均匀散在分布，密度自出生后呈逐渐下降趋势，到成年降至最低，并恒定直到老年。

Results : The NOS positive cells are scattered in pterygopalatine ganglion .

模型采用位置过饱和形核与恒定速率形核两种形核方式，研究了不同算法下再结晶过程的动力学。结果表明：网格规模与邻居关系对再结晶动力学的Avrimi指数n几乎没有影响；

Site-saturated nucleation and constant-rate nucleation modes were adopted in this model , and the kinetics of recrystallization was investigated under different algorithms .

恒定温度增加压力时，ξe向体积缩小的方向移动；

When temperature is invariable but the pressure is increased , ξ _e is moved in the direction that the volume narrows ;

SVPWM算法保证了逆变器的开关频率恒定。

The SVPWM algorithm keeps the switching frequency constant .

PWM整流技术具有输入电压恒定、能实现单位功率因数运行的特点。

The three-phase of PWM voltage source rectifier owns such features as constant output voltage and running under unit power factor .

恒定幅度的多项式相位信号（PPS）由其相位多项式系数表征。

Constant-amplitude polynomial-phase signals ( PPSs ) are characterized by their phase polynomial coefficients .

抗CEA抗体C2-45重链恒定区的置换与活性鉴定

Replacement of the constant region gene of a novel anti-CEA antibody and characterization of its biological activity

恒定功率因数节能方法在VVVF变频调速器中的应用

Energy-saving Method of Constant Power Factor for a VVVF Inverter

由于β-actin在瘢痕组织和正常皮肤中的不恒定性，建议在瘢痕的mRNA定量研究中不作为内参照物。

In scar mRNA quantitative research , β - actin is not suitable to be the reference standard because it fluctuates between the scar and normal skin .

通过数字模拟，对实际应用中两端恒流器件的rf调制进行了较详细的分析，并可使恒定电流上rf调制小于1%。

RF modulation on the constant current of the device has been simulated and can be reduced less than 1 % compare to the constant current .

常用螺纹插补算法中，很难选取一个恒定的脉冲计数值n，以满足高速切削要求。

The interpolation algorithm in common use can ′ t meet the demands of high speed thread cutting , because it is difficult to find a invariable pulse count value ' n ' .

PD对EPO的清除相对恒定，不影响用药后血清EPO峰值浓度。

The PD is relative constancy for EPO to be eliminated and does not influence the peak concentrations of serum EPO .

在分析振动压路机振动频率控制系统的基础上，对控制器进行了设计，提出了采用PID控制实现振动频率恒定的方案。

On the basis of analyzing vibratory frequency control system of vibratory roller , the controller are designed and the plan of vibratory frequency constant control by PID are put forward .

基于水解体系的pH值变化对其酶解物的分子量分布和肽提取率的高低影响很小，确定水解过程中不必加碱保持体系pH值的恒定。

Basis on change of pH has little effect on recovery ratio of peptides and distribution of molecular weight , there is no need to add alkali to keep pH constant during hydrolysis .

现代计算机数控系统中已经普遍使用非均匀有理B样条插补，但大多数非均匀有理B样条插补算法都致力于取得恒定的进给速度而不是轮廓精度。

Non-uniform rational B-spline ( NURBS ) interpolation algorithms have been provided in modern Computer Numerical Control ( CNC ) systems , however most of them focus on a constant feed speed without considering the contour accuracy .

本文提出了一个新的数学模型，用于预测高Reynolds数的二维紊流场中非恒定空化流的形成与发展过程及其内部结构。

A new mathematical model is proposed for predicating the dynamical behavior and inner structure of unsteady cavitation in a two-dimensional high-Reynolds number flow field .

即首先利用薄膜分散超声破碎法制备PL水分散液，然后与HA的水溶液混合，恒定温度搅拌一定时间得到复合物。

Then the suspension of PL was mixed with HA solution and the complex was obtained after stirring under a constant temperature for a definite time .

哺乳动物MHC（主要组织相容性复合物）II结合的恒定链在抗原呈递过程中对MHcII的功能调控起着重要的作用。

Major histocompatibility complex ( MHC ) class II-associated invariant ( Ii ) chain plays a key role in controlling MHC class II function in antigen presentation .

本文在原MG模型的基础上建立了非恒定转速下压气机不稳定信号的数学模型，给出了详细的推导过程，并对其进行了仿真验证。

Based on the MG model , we established the mathematical model of unstable signal in the compressor under the condition of non-constant speed , giving the detailed derivation and the simulation results .

采用溶剂浸渍法和恒定应变四点弯曲方法研究了HDPE注塑制品的ESC行为。

2 , Using Solvent immersion method and constant strain four-point bending method research the ESC behavior of HDPE injection molded parts .

空心圆柱仪（HCA）模拟恒定围压下主应力轴循环旋转应力路径能力分析

Analysis on ability of HCA to imitate cyclic principal stress rotation under constant confining pressure