查询词典 major axis

When you observe the minor and major axes of the ellipse we see that the minor axis goes through the center of the square while the major axis does not.

这时你会观察到椭圆的次轴经过其中心区域，而主轴则没有。

By Visual Basic 6.0 program, taken the distance between hole 200mm and buried depth 120～150mm as the optimization goal, the most optimum parameters range of the mechanism was obtained as follows: the initial angle between planet frame and the line formed from spraying-fertilizer needle-tip and planet wheel axle was -45°～-40°, the initial angular displacement of planet frame was 40°～50°, the distance between spraying-fertilizer needle-tip and the planetary gear axle center was 280～300mm, simultaneously, the semi-major axis of elliptic gear was 29.364mm, the teeth quantity was 23, the ratio of semi-minor axes and semi-major axis was 0.958, the radius of circular gear was 25mm.

对该机构进行运动学分析，建立了数学模型，以穴距200mm和入土深度120～150mm为寻优目标，应用Visual Basic 6.0软件编程得出满足机构运动要求的最优参数范围为：喷肥针尖和行星轮轴连线与行星架的初始夹角-45°～-40°、行星架初始角位移40°～50°、喷肥针尖与行星轮轴心距离280～300mm，此时椭圆齿轮长半轴29.364mm、齿数23、短半轴与长半轴比0.958，正圆齿轮半径25mm。

In the light of the causes of the fracture of major axis of reclaimer's guide-wheel group, some corresponding improving measures have been adopted, the fracture of the major axis being avoided, and the good results being obtained.

针对取料机导轮组长轴断裂的原因，采取了相应的改进措施，避免了长轴的断裂，取得了良好的效果。

When the electrical work is running its principles, through chain-major axis rotation velocity, the major axis through the chain sprocket drive gear wheel ends, gear and spline drive for both the

其工作原理是当电机运转后，通过链传动带动长轴转动，长轴的两端通过链条链轮带动齿轮转动，齿轮、齿条带动两头的三级滑叉作横向同步运动。

When the electrical work is running its principles,through chain-major axis rotation velocity,the major axis through the chain sprocket drive gear wheel ends,gear and spline drive for both the horizontal cross-piece simultaneous movement.

其工作原理是当电机运转后，通过链传动带动长轴转动，长轴的两端通过链条链轮带动齿轮转动，齿轮、齿条带动两头的三级滑叉作横向同步运动。

When the electrical work is running its principles,through chain-major axis rotation velocity, the major axis throughthe chain sprocket drive gear wheel ends, gear and spline drive forboth the

其工作原理是当电机运转后，通过链传动带动长轴转动，长轴的两端通过链条链轮带动齿轮转动，齿轮、齿条带动两头的三级滑叉作横向同步运动。

Based on the requirements of ascertaining the orientation and dimension of toy major axis, calculating the flaming dimension and speed along with the toy major axis in American standard consumer safety specification for toy safety, combine with PLC control technology, high-performance and fine-segmentation driver as well as step-in motor.

基于美国玩具安全中要求确定玩具的主轴线方向和尺寸，并沿主轴线方向计算玩具燃烧长度和速度的需求，结合PLC控制技术、高性能细分型驱动装置和步进电机的工作原理，对研制玩具燃烧测试仪的工作原理、工作过程、结构设计以及软硬件结构和技术特性进行了详细论述，指出此测试仪可满足美国玩具燃烧测试需求。

If the straight line linking the nose and tail is defined as the major axis of the aircraft, any aircraft boundary is symmetric about its major axis.

尽管不同用途、不同国度生产的飞机，其形状、大小千差万别，但如果将机首与机尾的中心直线方向定义为飞机的主轴方向，则任何一架飞机的边缘图像都是关于主轴对称的。

The formulae of the anterior surface are ellipsoids, with the major axis on the Z axis and the short axis on the Y axis.

正视儿童角膜前表面为长轴在Z轴、短轴在Y轴的长椭球面。

Because of the secular perturbation variations of the ascending node right ascension, the argument of perigee and the mean angle caused by the initial deviations of the semi-major axis, the inclination and the eccentricity are linear time-variant, then the active biases of the semi-major axis, the inclination and the eccentricity can realized the self-stabilization design of the elliptical orbit satellite constellation, and so the configuration stability will be improved.

通过初始偏差对椭圆轨道卫星的长期影响分析可知，轨道半长轴、倾角和偏心率的初始偏差对升交点赤经、近地点幅角和平近点角的长期摄动变化是线性的，因此通过主动偏置轨道半长轴、偏心率和倾角能够实现椭圆轨道星座构型的自稳定设计，从而提高其构型稳定性。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。