同轴的

Based on the prior art, the optical engine according to the invention has the improvements that, three optical axis steering components are respectively introduced into red, green and blue light illumination systems, and an optical axis lengthening structure is introduced into the green light illumination system, so that optical axes of the red, green and blue light illumination systems, each of which is from an LED resource to the optical axis steering component, are counterclockwise rotated for 90 degrees, parallel with each other, parallel with an optical axis of a projection lens, arranged in a same plane and positioned under the projection lens, luminous faces of three LED luminous chips of the red, green and blue light illumination systems are in a same plane, and the three LED luminous chips can be mounted on a same heat-radiating plate, therefore, the heat-radiating system has a simplified structure, and the optical engine has reduced size.

在背景技术所述的光学引擎的基础上作以下改进，在红、绿、蓝光照明系统中引入三个光轴转向器件和在绿光照明系统中引入光路加长结构，旨使：红、绿、蓝光照明系统各自的从LED光源至光轴转向器件部分的光轴朝逆时针方向转动90°、互相平行、与投影镜头的光轴平行、居同一平面和位于投影镜头的下方，红、绿、蓝光照明系统的三个LED发光芯片的发光面居同一平面，三个LED发光芯片可安装在同一块散热平板上，散热系统的结构简化，所述的光学引擎的尺寸减小。

This paper takes the cylindrical boult of the 40 flour mills as the object of study,establishes the corresponding mechanics model ,connects theory to reality,designs the nut conicity,then uses the same conicity offsetting poor alignment between the nut and the cylindrical boult,decomposes reinforcingsteel radia.

以40型面粉机圆筒筛为研究对象，建立相应的力学模型，通过理论结合实际，设计螺母锥度，在螺母与圆筒筛之间采用同锥度错位配合，将钢筋的径向受力通过锥面分解到钢筋轴向一部分，使得钢筋在轴向和径向都保持尽可能小地受力。

The second set of scenarios: Journal wear parts of liner with the first scenario, the first correction series water roll excircle and journal excircle parts machining rounding, trimming good necks confecting tight fit of steel casing.

第二套方案：轴颈磨损部位镶套同第一种方案，不后订正串火辊外方，并不兵轴颈外方部位加工方整，再在整理好的轴颈上配制不松打扰的钢套。

This paper extracted and analysed 11Math-Mophological Features such as Area, Perimeter, X-Length, Y-Length, Shape-Parameter, Lobation, Sphericity, Circularity, Roundness, Eccentricity and HoleNumber. Based on 40 species of insects which belonging to 8 Orders, 25 Families. And then ranks the accountability of 11 features each in insect identification while assessing their implication to insect taxonomy on levels of Order, Superfamily, Family and Species. More than those, also describes the kinship among the insects of various categories within the same level from the perspective of mathematical morphology through cluster analyses.

论文对隶属于8个目25科的40种昆虫利用计算机视觉技术进行了自动鉴别研究，从昆虫图像中提取和分析了这些昆虫的面积、周长、横轴长、纵轴长、形状参数、叶状性、球状性、圆形性、似圆度、偏心率、亮斑数等11项数学形态特征，并分别探讨了在目、总科、科及种分类阶元上这些数学特征在昆虫分类中的应用可能性和可靠性，利用聚类分析从数学形态学角度对所涉及到的同阶元昆虫类群的亲缘关系做了描述。

After treated the spinal cord slice at E18 ~ P0 with ChABC at a final concentration of 0.1 U/ml, CGRP-LI fibers in the superficial layers of DH and their branches were seen to extend ventrally instead. When the concentration of ChABC increased to 0.5 U/ml, the above changes were more obvious.

2用0.1 U/ml终浓度的ChABC处理E18 ~ P0的小鼠脊髓片后，原本由DH浅层外侧部向腹内侧延伸的CGRP-LI轴突转为向腹外侧延伸，由DH浅层内侧部向腹外侧延伸的轴突同原本向背侧延伸的分支一起变为向腹侧生长。

The key point of the structure of the utility model is that: the other side of the reducer that is arranged on the platform is provided with a hoisting device; the roller shaft end of the electronic controlled windlass is provided with a hub, a damper brake is arranged outside the hub; the input castellated shaft of the reducer that is arranged on the electronic windlass is provided with duplicate gears that have different amount of teeth.

本实用新型包括标准节，两侧标准节的中间为平台，电控卷扬机的卷绳通过平台上的滑轮同吊盘相连；平台上的减速器的一侧设置有可提升平台的具有卷绳的滚筒，平台上设置有具有滑轮的支架，其结构要点平台上的减速器的另一侧设置有提升装置；电控卷扬机的滚筒轴端设置有轮毂，轮毂外设置有制动闸；电控卷扬机的减速器的输入花键轴上设置具有不同齿数的双连齿轮，双连齿轮之间的凹槽内的拨杆同减速器外的摇把相连。

Including linear bearings, linear guide, straight axle, ball screw, spline shaft, oil bearing, bearing joints, locking nut, coupling, pneumatic / hydraulic / electrical devices, X-Y-Z platform, sliding Unit, cross-roller guide, all kinds of casters, as well as various types of high-speed motor with frequency, widely used in woodworking machinery, and other carvings of CNC machine tools on the main axis, its high-performance, low prices, is your An ideal choice.

包括直线轴承、直线导轨、直线轴、滚珠丝杠、花键轴、含油轴承、关节轴承、锁紧螺母、联轴器、气动／液压／电器元件、X —Y—Z平台、滑动单元、交叉滚子导轨、各种脚轮等，及各种类型的高速同频电机，广泛用于木工机械、雕刻机等CNC数控机床的主轴上，其性能高，价格低，是您的理想选择。

One simplified hypothesis is that, when the growth cone detected the directional signal, actin will polymerize asymmetrically in the growth cone, so that the filopodia and lamelipodia will extend preferentially to one side, microtubule will further follow and stabilize this growing direction.

一种假说认为，当轴突生长锥探测到方向性的信号时，生长锥内的 actin成分发生不对称聚合，filopodia及lamelipodia向一侧优先延伸，进而轴突内微管也朝同侧延伸，使生长方向进一步稳定下来。

The utility model belongs to a massage body-building device, composed of a grip, a grip connecting piece, a tension spring, a roller connecting piece, a roller carrier and a roller, wherein, two connecting plates on the roller carrier and the roller are respectively connected and fixed by a connecting shaft, the roller whose surface is smooth is cylindrical, a connecting piece of the roller carrier is made by gripping round steel into a circular hole, and after two ends of the connecting piece of the roller carrier, which is connected with the connecting plates, are pressed into a flat shape, a drilling hole and the connecting plates are connected and fixed by the connecting shaft.

本实用新型属于按摩健身器，是由握把、握把连接件、拉簧、滚轮连接件、滚轮架及滚轮组成，其特点是：滚轮架上的两个连接板及滚轮均有连接轴连接固定；滚轮为圆柱形，其表面呈光滑；滚轮架连接件由圆钢握成圆孔，同连接板连接的两端压成扁形后钻孔与连接板由连接轴连接固定。

In this study, a commercial CAD/CAM Software is used to plan and generate the multi-axis tool path, and a table rotating/tilting type five-axis machining center is used to perform the experimental machining operation. The material of the die studied is NAK 80 die tool steel, and the geometries are modeled as concave and convex spherical surfaces. Milling parameters considered are spindle speed, feed rate, and different types of cutting tool path. The experimental results show that the surface roughness for concave spherical surface is about 0.247 μm and roundness is about 0.0283 mm and the surface roughness for convex spherical surface is about 0.250 μm and spherical roundness is about 0.0551 mm under the cutting conditions mentioned in this study.

本研究的实验方法与步骤包括利用商用CAD/CAM系统针对实验对象规划三轴/五轴同动加工路径，并经后处理程式转换，在本实验室之平台倾斜/旋转型之五轴加工机上进行实验，实验对象为NAK80模具钢材料之凹与凸球形曲面之加工，此外考虑的切削条件有主轴转速、进给速度、加工路径等，在本研究所设定之最佳切削条件下，凹球形曲面之真圆度约为0.0283 mm，粗糙度为0.247 μm，而在相同切削条件下，凸球形曲面之真圆度为0.0551 mm，粗糙度为0.250 μm。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。