查询词典 rotation group

They include:collinearity--an invariance under the projective transformation group;Parallelisminvariance under the affine transformation group;the direction of angles--aninvariance under the rotation transformation group.

这些几何不变性质包括共线性——在射影变换群下的不变性；平行性——在仿射变换群下的不变性；角的方向——在欧氏平移变换群下的不变性。

Have introduced its systematic structure and operation principle in the system of loading of the inertia, and the vibration question that should be paid attention to while designing a group of rotator inertial mass, describe a critical rotational speed of group of rotator inertial mass in detail, influence the factor of a critical rotational speed of group of rotator inertial mass, and rotate a critical rotational speed computing technology and rotation of group and a balance question of group of inertial mass of inertial mass , and confirmed a design of group of rotator inertia quality finally.

在惯量加载系统中介绍了其系统结构和工作原理，以及在设计旋转惯性质量盘组时应注意的振动问题，详细地论述了旋转惯性质量盘组的临界转速，影响旋转惯性质量盘组的临界转速的因素，以及旋转惯性质量盘组的临界转速的计算方法和旋转惯性质量盘组的平衡问题，并最后确定了旋转惯量质量盘组的设计。

Therefore, we request the Office of the Chief centres rotation system, all personnel must be used to promote training centres, the first group of rotation has ended, the measures to promote the organ style changes, but also enhance the overall quality of the organs, improve in-building system in the image and prestige among the masses.

因此，我们要求厅政务中心实行轮岗制，所有需要提拔使用的人员都要到中心锻炼，目前，第一批轮岗已经结束，这一措施，推进了机关作风转变，也提高了机关的整体素质，改善于建设系统在群众中的形象和威望。

Methods The observation group patients used rotation card,the control group patients did not use the rotation card,compared the incidence of adverse reaction at injection site.

观察组患者使用记录卡，对照组患者不使用记录卡，比较注射部位不良反应的发生率。

Result: The ROM of group A had no significant difference with that of the control group. The ROM of group B had no significant difference with that of the control group except rotation, each ROM of group C and group D was significant difference with the control group, and the ROM of group D was the biggest. The ROM of group E was the smallest and had statistically significant difference in each motion compared with the control.

结果：A组ROM值与对照组无显著性差异；B组除旋转外与对照组无显著性差异，旋转稳定性也达到了对照组的61.86%；C组与对照组均有显著性差异；D组ROM值最大，与对照组有显著性差异；E组除后伸外ROM值均明显小于对照组，差异有显著性(P.05)。

The rats were randomly divided into four groups: normal contral group; double-axes rotation stimulation group; the bilateral labyrinthectomy group; group of two-axes rotation stimulation after the bilateral labyrinthectomy.

为了探讨旋转刺激与运动病发生的关系，本研究利用一种复杂的围绕两轴旋转的加速度刺激器刺激大鼠后，观察大鼠全脑内Fos蛋白的表达情况。

MATERIALS AND METHODS: Patients with unilateral benignparoxysmalpositionalertigo of the posterior semicircular canal were randomized to a standard Epley maneuer group, a group that receied an additional 45 degrees head rotation during the maneuer, and a group that receied instructions about sleeping position after treatment.

材料与方法：患有单侧后半规管的良性阵发性体位性眩晕的患者随机分为：标准Epley方法治疗组、Epley方法附加45度头部旋转治疗组、附加睡姿说明的治疗组。

The results are as follows:(1) With the imposing of orthopedic force of simulating maxillary protraction on maxilla, in the sagittal direction, the maxillary complex of the SD Rats in experimental group grows more quickly than that in two control groups, and the extent of the maxillary complex increases more evidently. The maxillary complex displays anti-clockwise forward and upward rotation.(2) With the imposing of orthopedic force on maxilla, upper incisors exhibit labial-inclined, labioclination of lower incisors changes insignificantly, and the shape and the dimension of skull are not affected significantly.(3) The expression of TGF-3 , in frontomaxillary sutures and palatomaxillary sutures shows different intensity in different extent of time. But The expression of TGF-{3, in experimental group is more intensive than that in two control groups, and that in operated control group and natural growth group has no significant difference.

结果如下：在模拟上颌前牵引矫形力作用下，(1)生长发育期大鼠上颌复合体在矢状方向生长加快，长度明显增加，并表现出向前向上的逆时针旋转；(2)上切牙唇倾，下切牙的唇倾度没有明显变化，颅脑的形态与大小不受影响；(3)额颌缝和腭颌缝中TGF-β_1的表达，同一时段实验加力组要强于手术对照组与自然生长组，而手术对照组与自然生长组之间无显著性差异。

The Go moved backward with 1.35mm and upward with 1.90mm in group I, the gonial angle increased for 3.69°, and angle between palatal plane and mandibular plane was increased for 5.00°; In group II, the Go moved backward with 1.85mm and upward with 3.32mm , the gonial angle increased for 4.06°, and angle between palatal plane and mandibular plane was increased for 5.22°. Both in group I and II, there was a tread for clockwise rotation of mandibular corpus. The length of pterygomasseteric sling was mild increased due to the backward movement of Go.

在Go点的变动方面，在Me点向前位移的族群里，术后Go点平均向后1.35mm，向上1.90mm， gonial angle 平均增大3.69度，腭平面与下颚平面的夹角则是增加5.00度；在Me点向后位移的族群里，术后Go点平均向后1.85mm，向上3.32mm， gonial angle 平均增大4.06度，腭平面与下颚平面的夹角则是增加5.22度，不论是向前或是向后的族群，结果皆显示翼咀嚼肌悬吊带有轻微被拉长的迹象。

There was a good correlation between Ptw,AVCtw,MVOtw,PTV,PUV,UntwR and age.2.Assessment of left ventricular twisting and untwisting of DCM patients19 DCM patients(range 18-80 yr,mean age 50.52±17.52 yr,2 females) and 21 age- and sex-matched normal controls(range18-80 yr,mean age 49.05±16.94 yr,5 females) were enrolled into this study.Then DCM patients were divided into two groups:E/A＜2 group and E/A＞2 group.The routine echo showed the left ventricle dilated and EF decreased.The results show that LV rotation degree, rotation velocity at baseline and apex were irregular changeable with the cardiac cycle;the rotation direction was clockwise at the base and counterclockwise at the apex,and are combined to yield a systolic counterclockwise twisting as seen from the apex,but the rotation at the basal and apex were the same direction in some patients.

扩心病患者左室扭转及解旋特征的研究选择扩张型心肌病(Dilated Cardiomyopathy，DCM)组患者19例(男性17例，女性2例，年龄18～82岁，平均50.52±17.52岁)，健康体检者21例(男性16例，女性5例，年龄18～80岁，平均49.05±16.94岁)作为对照组，扩心病患者按照E/A分为E/A＜2、E/A＞2两个亚组，结果显示：常规超声显示DCM组LVDd值增大，EF值减小；DCM患者左室心底部与心尖部心肌旋转角度、旋转速度随心动周期变化曲线明显紊乱；与正常组比较，DCM患者左室整体扭转角度和速度分别为(6.49±1.82)°、(67.84±15.60)°/s，较正常人显著减低P＜0.01左室舒张末及收缩末扭转角度DCM患者较正常人显著减低(P＜0.01，左室舒张末及收缩末时间在DCM-E/A＞2组较正常人及DCM-E/A＜2组显著缩短P＜0.01DCM患者左室解旋速度较正常人亦显著减低(P＜0.01，左室功能轻中度减低(DCM-E/A＜2)患者解旋率[(0.29±0.07)%]较正常人[(0.42±0.11)%]明显减低，但当左室功能重度减低(DCM-E/A＞2)时左室解旋率[(0.63±0.35)%]较正常人反而增加；左室整体扭转角度、舒张末扭转角度、收缩末扭转角度、解旋与左室射血分数未见明显相关性。3。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。