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The program developed with the formula enable the coordinates for points and the parametric formula for curves in the orthographic projection to be transferred into ones in the axonometric projection, which can be directly displayed on the screen. In addition, except for assigned different values to elastic coefficient of the axial direction and the angles of the axes, it is generally adapted in drawing any of the axonometric projections.

用它编程，可以把正投影中点的坐标或曲线的参数方程，转换成屏幕上能够直接显示点的轴测投影的坐标或曲线的轴测投影的参数方程，而且除了赋轴向伸缩系数和轴间角的大小、正负不同的参数值外，对绘任一种轴测投影和相应正投影都具有通用性。

When the axonometry projection plane is parallel to a coordinate axis, and the coefficient of axial deformation of two axes that parallel to the coordinate plane are equal, the cabinet axonometry is produced.

轴测投影面平行于一个坐标轴，且平行于坐标平面的那两个轴的轴向伸缩系数相等的斜轴测投影称为斜二等轴测图。

The transverse dynamic stiffness curve of a ship front shaft bracket ,and the transverse and longitudinal dynamic stiffness cruves of a back shaft bracket are obtained by means of experiment measurements.

采用实验方法对某舰尾轴架进行动刚度测量，得到了前尾轴架的横向动刚度曲线，后尾轴架的横向和纵向动刚度曲线；分析尾轴架的动刚度曲线，可得到尾轴架结构的固有频率。

The transverse dynamic stiffness curve of a ship front shaft bracket,and the transverse and longitudinal dynamic stiffness cruves of a back shaft bracket are obtained by means of experiment measurements.Analyses of these curves make the natural frequencies of the shaft brackets available.

采用实验方法对某舰尾轴架进行动刚度测量，得到了前尾轴架的横向动刚度曲线，后尾轴架的横向和纵向动刚度曲线；分析尾轴架的动刚度曲线，可得到尾轴架结构的固有频率。

The measuring device is structured by including a He-Ne laser; a beam expander, a soft aperture slot and a off-axis parabolic mirror to be measured are arranged in turn along the direction of the emergent laser beam direction of the He-Ne laser; a standard cross hair and a micro objective are arranged in turn on the direction of the reflected beam of the off-axis parabolic mirror; the micro objective is arranged on the focus of the off-axis parabolic mirror; the focus is imaged on an area array CCD; the output end of the area array CCD is connected with a computer; the off-axis parabolic mirror is fixed on a five-dimensional electric adjusting frame.

一种离轴抛物面镜点聚焦能力测定装置和测定方法，测定装置的构成包括：一台He-Ne激光器，沿该He-Ne激光出射激光束方向依次设置扩束器、软边光阑和待测的离轴抛物面镜，在该离轴抛物面镜的反射光束方向依次设置标准叉丝和显微物镜，该显微物镜位于所述的离轴抛物面镜的焦点，所述的焦点成像于面阵CCD上，该面阵CCD的输出端接计算机，所述的离轴抛物面镜固定在一五维电动调整架上。

The Company is a professional production of long-term flexible coupling, gear-type coupling, flange coupling, coupling roller, slider coupling the main processing unit, my plant has a processing center, CNC Lathe , wire-cutting and all kinds of ordinary cars, milling, planing, grinding and other medium-sized processing equipment totaling more than 30 Units, or in the area of 1500 square meters, and its predecessor was the Wuhan plant, subordinate units of vehicles engaged in precision machining for decades, its technical strong, the company will not only provide high-quality machining products, but also provide a comprehensive service, from product design, processing, manufacturing, packaging, transportation and other integration services, our constant self-perfection, technology continues to improve, put all the targets set up at "Customers are our God" on the basis points.

本公司是一家长期专业生产弹性联轴器、齿型联轴器、凸缘联轴器、滚子联轴器、滑块联轴器为主的加工单位，我厂拥有加工中心，数控车床，线切割及各类普通车、铣、刨、磨等中型加工设备共计三十多台，占在面积1500平方米，其前身是武汉车辆厂的下属单位，从事精密加工数十年，其技术力量雄厚，公司不仅提供品质卓越的机械加工产品，更提供全面周到的服务，从产品设计、加工制造，包装运输等一体化服务，我们不断的完善自我，技术不断提高，把一切目标都建立在"客户是我们的上帝"的基点上。

The PZT plates were polarized in thickness direction. By using the deformation in the plane perpendicular to the direction of polarization, the rotation around Z axis was generated when the torsional vibration around Z axis mode was excited. And the rotation around X axis or Y axis was generated by combining the longitudinal vibration mode and the bending vibtration mode.

利用压电陶瓷在垂直极化方向平面内的变形，激励定子绕Z轴的扭转振动模态，实现转子绕Z轴的转动；激励在定子中固有频率接近、振动方向相垂直的伸缩振动模态和弯曲振动模态，并通过振动的叠加使定子末端质点产生绕X轴或者Y轴的椭圆运动，实现转子绕水平轴的转动。

Products mainly include all kinds of couplings universal coupling, diaphragm couplings, plum-type coupling, gear coupling, etc.

产品主要包括各式联轴器（万向联轴器、膜片联轴器、梅花型联轴器、齿式联轴器等）、同步带轮、链轮等。

Roll cloud heading inland over Shark Bay, Western Australia: A roll cloud is a horizontal tubular formation that forms in the cold downdraughts that spread out ahead of an approaching storm

澳大利亚西部鲨鱼湾上空的滚轴云，正向内陆翻卷而来。滚轴云是水平的管形状云，当暴风雨逼近时，寒冷的乡下气流扩展开来就会形成滚轴云。滚轴云是非常危险的，曾测量到滚轴云产生的上升气流和下沉气流速度每分钟超过1500米。

With protected stuff at colligation part in order to protect tail shaft , send the tail shaft into the stern tube slowly with manual crane , during the process , we should align the tail shaft and stern tube carefully in order to protect the impact between the stern tube bearing and the screw of tail shaft .

起吊艉轴并送入艉管内：在绑扎钢丝绳的部分包上麻包布以保护艉轴后，即可起吊艉轴；然后用葫芦将艉轴慢慢送入艉管内达到预定位置，在送进过程中，要注意将艉轴对准艉管，防止艉轴承和艉轴螺纹与之相碰。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。