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  quality (
     Multiple regression analysis showed poorer quality of life in IBS was related with sleep quality (P =0.281), negative life event (P =-0.363)and anxiety (β=-0.175).
     多元回归分析显示IBS患者的生活质量降低与睡眠质量(β=0.281)和负性生活事件(β=-0.363)及焦虑状态(β= -0.175)关系更为密切.
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     Indoor particles have close relationship with indoor air quality (IAQ) and have great influence on people's health.
     室内空气中颗粒物与室内空气质量(Indoor Air Quality,IAQ)有着密切相关。
     Results ①PSQI≥8 as a standard, there were 11.8% have sleep problem, which were daytime dysfunction(30.1 %),sleep latency(16.6%)and subjective,sleep quality(16.1%).
     结果  1 PSQI总分≥ 8分作为判断睡眠质量问题的标准 ,有 1 1 .8%的大专新生有睡眠质量问题 ,睡眠不佳主要体现在日间功能障碍 (3 0 .1 % )、入睡时间(1 6.6% )和睡眠质量 (1 6.1 % )。
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     0.9~1.79, fair; <0.9, poor. (5) The Pearson's correlation analysis between B-IBI and chemical-physical variables showed that B-IBI corresponded strongly with conductivity (r=-0.62, p<0.01), and habitat quality (r=0.65, p<0.01).
     B-IBI与电导率(r=-0.62,p<0.01)和生境质量(r=0.65,p<0.01)显著相关。
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     Results: 1 The levels of Inhibin B in FF was positively correlated with the numbers of retrivaled oocyte E2 embryo quality (P <0. 05) and inversely correlated with age (P<0. 05) .
     2、卵泡液中Leptin的值与T(r=0.451,P<0.05)、体重指数(Body mass index,BMI)(r=0.359,P<0.05)呈正相关:与E_2(r=-0.36,P<0.05)、胚胎质量(r=-0.359,P<0.05)呈负相关;
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  “质量(”译为未确定词的双语例句
     APPROXIMATE B. S. WAVE FUNCTIONS FOR AN ELECTROMAGNETIC BOUND SYSTEM OF SPINS(1/2, ■/2)OR(1/2,1/2)WITH UNEQUAL MASSES
     不等质量(1/2—■/2)或(1/2-1/2)电磁束缚系统的近似B.S.波函数
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     MECHANISMS OF NEUTRINOLESS DOUBLE BETA DECAY AND THE MASS OF HEAVY NEUTRINO*
     无中微子双β衰变的机制和重中微子的质量(英文)
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     Determination of Molecular Weights of Petroleum Residues and Asphalts by Cryoscopy (Ⅰ)─Feasibility of the Method
     冰点降低法测定渣油和沥青的分子质量(Ⅰ)──方法的可行性研究
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     Determination of Molecullar Weights of Petroleum Residues and Asphalts by Cryoscopy(Ⅱ)─Application of the Method
     冰点降低法测定渣油和沥青的分子质量(Ⅱ)──方法的实际应用
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     The results show that urethane is the reacting product and the existence of free isocyanate end group(—NCO)of PU,number-average molecular weights (Mn)of PU1 and PU2 are 4 370 and 7 230,distrbution indexs are 2.1 and 2.3,Tg are -65.5 and -41.2 ℃,respectively.
     GPC分析表明,PU1和PU2数均相对分子质量(Mn)为4370和7230,分布指数为2.1和2.3; DSC分析表明,PU1和PU2的Tg分别为-65.5和-41.2℃;
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     Quality.
     质量
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     QUALITY
     质量
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     Introduction to Test of Quality(1)
     质量检验综述(上)
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These bases are useful for building systems for evaluating image quality.
      
Such bases are useful for building systems for evaluation image quality.
      
Some theoretical issues and implementation details about the algorithm are discussed, including the solution of the pricing subproblem, the quality of LP relaxations, the branching scheme as well as the column management.
      
Seven topological descriptors are finally selected from 127 topological descriptors by GAPLS method to build a QSRR model with a high regression quality of squared correlation coefficient (R2) of 0.99998 and standard deviation (S) of 2.88.
      
These results might serve as a base for quality evaluation of Magnetitum (Cishi).
      
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In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the...

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the given final region of states. Some conclusions are obtained from the maximum principle by using transversal conditions of optimal trajectories in terminal points, and the particular properties of the stated problem are pointed out. The case of linear dif-ferential equations with integral quadratic functional criterion is investigated in detail.Further, in the second part the fundamental properties of isoloss regions, the rela-tions between the isoloss region and optimal control functions are indicated. As a direct result a partial differential equation determining the optimal loss-function J (x) is found and the connection between function J (x)and optimal vector control function u (x) is also stated. The methods proposed are practically the extension of the me-thods used by us for designing time optimal control systems as seen in [5, 6 ,7].Finally, an example is illustrated with optimal trajectories shown in phase plane.The necessary numerical data is calculated by an analog computer with high accuracy.

文中研究了具有公式(3)表示的一般正积分泛函的最优控制系统的综合问题.在第一部分中研究了具有控制参数的一阶微分方程组.控制系统的终点状态为n维相空间内的某一逐段光滑边界的闭性区域Ω.文中指出了根据极大值原理和轨道终点的横截条件寻找引到Ω的所有最优轨迹的方法.这里详细地研究了具有二次泛函和被积函数中不明显含有控制参数的质量指标泛函的线性方程情况.在文中第二部分研究了等损耗区的主要特性.指出了等损耗区与最优控制函数之间的关系.导出了求算最优损耗函数J(x)的偏微分方程,以及这一函数与最优控制函数u(x)的关系.上述方法是我们曾在文献[5,6,7]中用过的最优快速系统的综合方法的推广.文章最后举有例证.

This paper presents an investigation of the"Automatic Operator" of Diesel Loco-motive based on the principle of compound programming control. According to the sur-rounding conditions of locomotive, the"Automatic Operator"can change its structure automatically in order to obtain better quality of control.In this paper, the principle scheme, the characteristics of"Automatic Operator" and the experimental results of automatic control of Diesel locomotive with "Automatic Operator"are presented, the principle and...

This paper presents an investigation of the"Automatic Operator" of Diesel Loco-motive based on the principle of compound programming control. According to the sur-rounding conditions of locomotive, the"Automatic Operator"can change its structure automatically in order to obtain better quality of control.In this paper, the principle scheme, the characteristics of"Automatic Operator" and the experimental results of automatic control of Diesel locomotive with "Automatic Operator"are presented, the principle and the design of logical circuit for changing the characteristics of"Automatic Operator"is emphasized. The latter part of the paper in-cludes a discussion of quality of control; and finally, formulas for determining the para-meters of the control system are derived.

文内介绍了采用复合控制原理和根据机车所处客观条件自动切换系统结构的内燃机车程序控制方案,介绍了按此方案制成的(自动司机)总体线路及其性能.介绍了利用这台控制机进行内燃机车自动驾驶的全面试验结果.文中着重讨论了自动切换系统结构的逻辑装置的设计计算.给出了综合这类系统参数的计算公式.此外,对系统的控制质量进行了详细讨论.

Equations determining the velocity and density distributions within the mixing region of two incompressible gases with different densities are set up, their temperatures being assumed to be the same. For incompressible mixing the total number of gas molecules per unit volume is constant, although the density of the gaseous mixture varies from point to point due to diffusion of matter. As an illustration we consider the plane jet and steady motion. The boundary layer method of approximation can still be applied....

Equations determining the velocity and density distributions within the mixing region of two incompressible gases with different densities are set up, their temperatures being assumed to be the same. For incompressible mixing the total number of gas molecules per unit volume is constant, although the density of the gaseous mixture varies from point to point due to diffusion of matter. As an illustration we consider the plane jet and steady motion. The boundary layer method of approximation can still be applied. The boundary of the jet is shown to be the same as that for one fluid. The solution of the problem then depends upon the numerical value of the coefticient of viscosity of the mixture which is a function of the number of molecules of each constituent gas in the unit volume. The present method of investigation is applicable to the cylindrical and half jets and also to the case where the two gases are at different temperatures.

本文求出规定二不能压缩气体的分片合流运动时,速度与质量密度分布的微分方程式。假定两种气体的密度不同但温度则相等。不能压缩的定义是每单位体积中的两种气体分子数的和不变。本文只讨论一平面守恒注中所需要的微分方程式。粘滞流体运动中之边界近似法仍可应用。同样方法亦可用到守恒圆柱体注,半注及气体中温度不同诸问题。

 
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