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Taking the minimization of the tooth crown of a worm wheel and the maximization of transmission efficiency and the distance from the center as objectives,we establish the mathematical model for the multi-objective optimal design of worm transmission on the condition that the worm wheel and the worm transmission meet the requirements for load,strength and others.

以蜗轮齿冠体积最小、传动效率最高和中心距最小为目标，在保证蜗轮和蜗杆满足承载、强度及其它要求的前提下建立蜗杆传动多目标优化设计的数学模型。

At and , we can get a univariate cubic equation in and its three roots . By the dependence of the roots and the coefficients of the equation, we can choose corresponding space points ( such that the distance is the shortest from to the point with parameters and . Thereby we can get all the data of discrete points on the cubic curve of blending surface at . Again we denote the maximum value and minimum value of planar parameter with which meets by and respectively.

利用根与系数的连续相依性，可以选相应的空间点使其距离的圆截线上对应值的点最近的两个根，从而得到处拼接曲面的截线的离散点的数据并确定出与相截的平面参数的最大最小值类似地由处拼接曲面截线的离散数据得到处的离散数据，这样可以依次计算出拼接曲面上对应所有参数点的离散点的坐标。

Before going, they made off for the Windsor dining-room, which was in Dearborn Street, a considerable distance from Carrie's room.

去看戏之前，他们先去温莎餐厅。那家餐馆在第邦街，离嘉莉的住处有一大段路。

Prostitution and illegal gambling dens are ubiquitous, sometimes just a short distance away from police stations.

卖淫嫖娼和违法聚众赌博到处都是，有时候甚至就在里派出所不远的地方就有这样的场所。

But a great of such paper were vertical hung like this and that and the taste and quality of each paper were polymerized and stacked again and again with massive texture, large cubic, narrow distance and iterative layer made me an intuition of dispirit and indistinction, caused by that I got the title from the works of Jia Pingwa.

可许多张这样的纸如此这般地直立悬置在一起，每一张纸的质味在重复中叠加与聚合，粗砾的肌理、硕大的体量、逼仄的距离、往复的层次，让我生出颓败与困顿的直觉，这才借得贾平凹先生的书名来用。

The radius of a circle is the distance from the centre to the edge.

圆的半径是圆心到圆周的距离。

Specially as a liberalist, Lin Yutang kept distance much from the powerful circle, so that provided his works purely literary.

尤其是作为自由主义者的林语堂，始终与权力话语无缘，因而使他的绝大多数作品表现出更为纯洁的文学性。

These are, if you will, standard answers; in a word, they all build upon an attempt to distance oneself from all the encumberings that might, if taken seriously, compromise the freedom of the self to choose.

然而如果任何一方把其观点随便上纲上线成为「香港意识」的代表，动不动就拉到身分政治之上，还强迫公器去执行其个别的认识和理解，则不可能称为一场进步运动。

Granada - A short distance downslope from the Sierra Nevada mountains is the beautiful town of Granada and its most famous of attractions - the Alhambra .

格拉纳达-短距离下坡从内华达山脉山是美丽的城市格拉纳达和其最有名的景点-阿罕布拉。

Long distance telephony was also an option, but costs were very high and it often sounded as if the other party was speaking from inside some kind of echo chamber on a distant planet.

当然，长途电话也是一个选择，但价格十分昂贵，而且话筒另一边的声音听起来总像是从一个遥远星球的回音室里传来的。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。