距的

Through transformation of parameters, the meshing design system among Hy-Vo silent chain, sprocket and hob was built up based on the research of the pitch increment and the equivalent apothem increment of the effects on the common normal line length when the Hy-Vo silent chain was wrapped around and located on the sprocket, with the proper meshing conditions of Hy-Vo silent chain and sprocket into consideration. The design method of common normal line length was put forward that can be used when the value of the sprocket pressure angle was equal or unequal to the value of the Hy-Vo chain plate pressure angle.

在分析Hy-Vo齿形链链节围在链轮轮齿上定位时其节距增量和当量边心距增量对链轮公法线长度影响的基础上，根据Hy-Vo齿形链与链轮的正确啮合条件，通过参数变化，建立了Hy-Vo齿形链－链轮－滚刀三者之间的啮合设计体系，提出了既适用于链板齿形角等于链轮压力角情况，也适用于链板齿形角不等于链轮压力角情况的Hy-Vo齿形链链轮公法线长度的计算方法。

The results show that: the input of the internal fixation implant should be in accordance with the compressive trabeculae and be clingy with the femoral calcar; the stress distribution of the femur under external violence explained why the old people are easy to get the middle and low part fractures of the femoral neck and intertrochanteric fractures.

分析结果表明：股骨颈处的压力骨小梁和股骨距是重要的承载结构，临床医学治疗股骨颈骨折时，内固定物的放置应循压力骨小梁方向并尽量紧贴股骨距钻入；暴力作用时股骨上端的应力分布特点从生物力学的角度说明了老年人易于发生股骨颈中下段骨折和转子间骨折的原因。

In the aspect of the force analysis between cycloid disk and pin wheel, a kind of force analysis method of the mesh with initial clearance is put forward in allusion to the teeth profile of the equidistant and radial-moving combining modification, which is more accord with the actual engineering.

该方法主要是从整个传动过程中动态地考虑摆线轮与针齿齿面的受力情况，依据摆线轮与针齿的实际最先接触点的分布区间不同，对不同的等距与移距组合修形方式分别给出了动态受力分析方法，并且在整个传动过程中进行了优化搜寻，从而得出了整个传动过程中的接触力动态变化规律，相对以前的受力分析方法，计算的精度和准确性得到了提高。

The basic principle is based on spherical astronomy and elementary geometry of the trajectory mapping method based on the observation of a celestial body zenith distance, then the ship is located in order to sing the next point as the center of this satellite zenith distance of the ship's position as the radius of the circle, observing the same two objects, or objects at different times of the two observations, we can get two ship's position round, then the ship must have been a point of intersection of two ship's position on the circle.

其基本原理是建立在球面天文学和初等几何中的轨迹作图法基础上的，观测一个天体的天顶距，则航船就位于以星下点为圆心，此星天顶距为半径的船位圆上，观测两个天体或者不同时间同一天体的两个观测值，就可以得到两个船位圆，则航船一定在两个船位圆的一个交点上。

The substance of face milling cutter with unequal blade spacing is analyzed and the corresponding vibration reduction mechanism is discussed.

本文根据切削理论及端铣过程的几何关系，提出了单齿和多齿端铣刀的铣削力模型，对不等齿距端铣刀的实质进行了分析，论述了不等齿距端铣刀的减振机

There are two causes leading fractures of the endodontic instruments. Firstly as the value of the toque inc1ases beyond the limited toque, the instrument will twist with no increase in toque and will fracture soon. The value of limited toque is proportional to 3 squares of the file radius.

根管器械断裂的原因主要有2个：一是扭转超过极限扭距，器械顺着扭转的方向发生塑性扭转直至断裂，圆杆的极限扭距与其半径的3次方成正比；二是器械在循环载荷下发生疲劳损伤，最后突然断裂。

Around 8pm the light was starting to fade. We were one pitch below Camp 5. Interestingly enough we heard lots of voices above us. I avoided having to lead the last pitch by getting the French party to throw down a rope that we could jumar up. Like the first night we were surprised how many folks were up and around this bivy. There was the French party. There was the Nose-in-2-days party and there was a Nose-in-hopefully-5-days party. There five of them in the last party and they had 3 or 4 huge haul sacks. There was one guy who must have been 275 pounds. He was the designated haul bag mule.

大概晚上八点，光线暗了下来，我们在第五营下一个绳距，有趣的是我们听到上面有很多声音，我不用先锋最后这个绳距，因为法国队抛下一条绳子，我们只要用犹玛上升即可，就像第一个晚上惊讶，好多人上到这个过夜处，有法国队，还有一个两天爬完Nose的队伍，还有一个希望在五天内能爬完Nose的队伍，最后这一队有五个人，三四个拖包，其中有个家伙大概有275磅重，他大概是专门拉拖包的吧。

At this level, you have not to add too many details in your write-hand "draft": size of every single element, paddings, borders and margins are enough.

在这一流程，你不需要在你的手写&草稿&上增加太多的细节：每个标签的大小（width，以pixel或percentage的形式），内边距，边框和外边距就足够了。

The thrust coefficients and propulsive efficiency of a two-dimensional flexible fin with heaving and pitching motion were computed using FLUENT. The effect of different locations of the pitching axis on propulsive performance was examined using three deflexion modes which are respectively, modified Bose mode, cantilever beam with uniformly distributed load and cantilever beam with non-uniformly distributed load.

利用FLUENT软件数值计算了二维柔性鳍作升沉纵摇运动时的推力系数及推进效率，探讨了修正Bose变形方程、均匀载荷和非均匀载荷悬臂梁变形方程等三种柔性模式下纵摇轴位置对摆动鳍推进性能的影响，其中纵摇轴在尾缘处能够获得更大的推力，而最高的推进效率分别对应修正Bose模式下纵摇轴距首缘1/3弦长处和悬臂梁柔性变形模型下纵摇轴距首缘2/3弦长处。

The integrated methods based on GPS observables and Kalman filtering are analyzed, and the integrated error models of using position velocity and pseudurange pseudorange-rate as measurement are analyzed too.

分析了基于GPS信息观测和Kalman滤波技术的GPS和惯导的组合方法，以及用位置速度、伪距伪距率为观测量进行组合的数学模型，推导了系统校正的公式。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。