夹角

STc延长与QRS-ST夹角阳性对冠心病诊断价值

Diagnostic Value of STc Prolongation and Positive QRS-ST Included Angle for Coronary Atherosclerotic Cardiopathy

在无法回避两者方向垂直或大夹角相交情况下，应根据巷道具体位置地应力值大小，加强巷道支护。

In the condition that cannot obviate both vertical orientation or big included angle , tunnel supporting should be strengthened according to the ground stress size of tunnel prop position .

V形肋条减阻最佳夹角的探讨

Research on the Optimum Angle of the V-shaped Riblet in the Channel

三维空间Doppler夹角的测量与流速校正方法的研究

New method of Doppler angle measurement and flow velocity correction in 3-D space

这是与z正轴的夹角。

That measures the angle down from the positive z-axis .

V型压缩机的动力平衡性与列间夹角关系的探讨

Study of Relation Between Dynamic Balance and Angle in Between Arrangement of ⅴ & type Compressor

“X”形的交点出现的位置和夹角与不同上限值和不同幅值区间有关。

The position and angle of the X-shaped crossing are related to the different upper limits and amplitude areas .

给出位相共轭反射率R随两耦合光束之间的夹角2θ，以及光束强度比β变化的实验结果。

The dependence of the phase-conjugate reflectivity upon the beam intensity ratio and the angle between two coupled beams are given .

在新的极位夹角定义下按K设计曲柄摇杆机构解析方法的研究

Based on new definition of included angle of extreme position , the research about analytical design method for CRANK-ROKER mechanism according to K

方法：以30例标本制成支气管树和13例CT影像观测叶、段支气管内径、段支气管与叶支气管的夹角。

Methods : The angles between segmental bronchi and lobar bronchi and the interior diameter of them were observed on 30 bronchial trees and 13 CT images .

TOPSIS夹角度量排序法的有效性探究

Study on the Validity of the TOPSIS Angle Measure Sorting Method

采用Moore夹角分析了水产品部门结构与水产品产量增长的关系，部门结构变动与水产品产量增长具有正相关关系，但不具有确定性趋势。

Then we analyzed the relation between output structure and output growth via Moore index .

主要叙述了发动机平衡和振动设计技术的发展.如单缸和直列、卧式对置、V型不同夹角多缸发动机的动、静平衡分析；

Such as , single cylinder engine and in line , horizontal opposed cylinder , various angle V type multi-cylinder engines static and dynamic balance analysis ;

本文对MUSIC算法测角精度进行了分析，给出了测角精度随两目标夹角、信噪比及快拍数而变化的数值结果。

This paper analyses direction-finding precision of the MUSIC superresolution algorithm , and presents numerical results of the precision related with directions of two targets and signal to noise ratios and snapshots .

本文给出按LMS准则设计的自适应系统达到稳态时，系统指向性的一般表达式.作为信号和干扰之间的广义夹角的函数，提出计算主瓣宽度、干扰方向零点深度和极限分辨力的方法。

The general representation of steady state directivity of adaptive system designed under the LMS criteria is given .

实验和理论分析表明，暗光伏孤子的形成与光的传输方向，强度梯度与晶体c轴夹角有关；

The analysis of theory and experiments shows that dark photovoltaic solitons depend on the direction of propagation , orientation of the intensity gradient , with respect to the crystalline axes of the medium .

峡谷上空风向与街道轴线的夹角越大、风速越小，则街道地面CO浓度越高。

The larger the angle between the wind direction and the street axis and the weaker the wind velocity , the higher the pollutant concentration on street surface is .

OCT测量健康人眼底视盘&黄斑夹角的研究

Research of OCT Measurement the Angle between the Optic Disc and Macula Lutea of the Health Human Eyes

超声血流测量系统往往由于无法确定声束-流速夹角（Doppler夹角），因而只能检测真实血流速度的轴向分量。

Since the Doppler angle is hard to measure correctly , current ultrasound blood flow measurement systems can only provide the axial component of the true blood flow velocity .

为获得不同断层构造的CT反演特征，通过实际地质模型探测实验，对断层构造与工作面巷道不同夹角的波速重建图像进行了对比研究。

Through practical detecting experiment in geological model , the velocity rebuilding images with different degree between fault structure and laneway were contrasted for getting the different CT inversion characters of the fault structure .

TEM拉伸试验中，使拉力轴平行膜面{111}或{110}，按应力轴与<110>或<111>方向成不同夹角进行拉伸。

In TEM tension experiments , the specimen are tensioned at different angles between loading axe and < 110 > ( < 111 > ) direction .

研究表明，城市群环路所服务的对象，主要是夹角小于90°的OD对。

The analysis results show that urban ring roads mainly serve the OD pairs with an angel less than 90 degree .

现行的众多教科书中对极位夹角的定义和锐角的取值范围，限制了书中所确定的行程速比系数k与极位夹角θ的关系式的通用性。

The definition of the angle θ in the present text books restricts the widely use of the formula about the coefficient k of travel speed variation and the θ existed in these books .

其次研究了THz波的温度调谐特性、极化反转光栅周期调谐以及改变入射泵浦光与光栅波矢夹角的调谐特性；

Next the tunable of THz wave of temperature , grating period , the incident angle and the radiation angle were given .

功率因数功率因数是电路中有功功率（W）视在功率（VA）间夹角的余弦值。

Power Factor Power factor is the cosine of the angle between the active power ( kW ) and apparent power ( kVA ) in a circuit .

结果直窦平均长（51±5.3）mm；直窦与硬腭水平的夹角为49.6°±7.2°；

Results The length of the straight sinus was ( 51 ± 5.3 ) mm , and the angle between the straight sinus and the hard palate plane was 49.6 ° ± 7.2 ° .

目的建立颅底及颅颈交界夹角的MR正常参考标准并提出MRI诊断颅底陷入症（BI）的新方法。

Objective To establish reference criteria on normal angles at the cranial base and the cranio-cervical junction ( CCJ ) on MRI and to create a new method for the diagnosis of basilar invagination by MRI .

硅酸铋（Bi4Si3O（12））晶列结构中的晶粒尺寸和晶粒夹角分布

Distribution of Grain Size and Grain Angle in Grain Line Structure of Bi_4Si_3O_ ( 12 ) Micro-crystals

结果表明，非保守FGM斜板的临界颤振荷载随梯度指标和夹角的增大而减小，随长宽比的增大而增大。

The effects of the gradient index , skew angle and aspect ratio on the stability of the non-conservation FGM skew thin plate were analyzed .

首先计算出两坐标夹角θ和光心参数Xc和Yc；

At first calculate out the angle θ between two plane coordinates and calculate out two parameter Xc and Yc ;