无齿

In order to reducing the cogging torque of PM brushless direct current machines,an analytical method,which was based on energy method and Fourier expansion,was proposed,which can express how to match slot and pole to reduce cogging torque.

为了削弱永磁无刷直流电动机的齿槽转矩，首先利用能量法和傅里叶分解法进行分析并提出了减小齿槽转矩的最佳极槽配合。

The mechanical transmis-sion is composed of high precision gearwheel and gear bar together with germany made low clearance and peg-free planetary gearwheel reducer. the mechanism is equipped with automatic clearance compensation device, which enables a clearance-free transmission and ensurea teh good performance and precision of the cutting machine.

机械传动采用高精度齿轮齿条及德国原装低隙免键行星齿轮减速器，机械结构增设自动补偿齿隙装置，使之做到无隙传动，保证了切割机良好的使用性能和精确度。

Linxia basin of Late Miocene fauna Hipparion to Rhizomys, porcupine, the original skunk, saber-toothed tiger, after the cat, hyena, elephant teeth Schnabelia, Hipparion, big lips rhinoceros, hornless rhinoceros, board rhinoceros tooth, the amount of nasal angle rhinoceros, weak hunt pigs, pig jaw arch, Nanji, ancestral deer, giraffes, antelope and other麝niu and the most abundant fossils in its quantity and quality, not only over the powder and Fugu, over the Europe's most famous, is located in Greece, samospi ke mi and location.

临夏盆地晚中新世的三趾马动物群，以竹鼠、豪猪、原臭鼬、剑齿虎、后猫、鬣狗、四棱齿象、三趾马、大唇犀、无角犀、板齿犀、额鼻角犀、弱獠猪、弓颌猪、麂、祖鹿、长颈鹿、麝牛和羚羊等最为丰富，其化石在数量和质量上不但超过了保德与府谷，也超过了欧洲最著名的，位于希腊的皮克米和萨摩斯地点。

Based on the matchable length of the replacement odontostyle and functional odontostyle, and also the evident gap of the replacement odontostyle and total stylet length, between the four successive stages of juveniles and its female in each population, it assured that each population was not mix with other morphologically similar Xiphinema species.

由每一群的雌虫及其4个前后龄期幼虫间的替代齿针和功能性齿针的长度相当接近，以及替代齿针和总口针的长度具有明显区隔的结果，这10群剑线虫中都无混杂其他形态类似的剑线虫种类。X。

This paper develops a mathematical model for the solution to the longitudinal tooth curve of an internal gear shaver based on the simplified principle for space transmission of a helical gear pair without flank clearance,and proposes a calculating approach of the profile modification of the grinding wheel to be used for grinding the longitudinal tooth curve of the shaver.

用简化的空间螺旋齿轮作无侧隙啮合传动的原理，建立了求解内剃齿刀齿向曲线的数学模型，并给出了修磨这种齿向曲线的盘形砂轮的廓形计算方法。

Based on the local synthesis theory, tooth contact analysis and precontrol method can only ensure that spiral bevel gears have perfect contact behavior without load; the loaded contact behavior, however, is unsatisfactory.

基于局部综合理论的弧齿锥齿轮齿面接触分析和接触性能预控技术可保证弧齿锥齿轮在无载时具有较理想的接触区域和传动误差，但无法保证其加载接触性能。

TTPF has been 100 varieties of production to be used synchronizer ring, the cone, pulley of air-condition, ring gear of planetary train etc ...It has achieved net or near forming, and it is preferred production to replace general forging.

TTPF 生产的精密锻件达 100 个品种规格，广泛用于汽车同步器齿套、齿锥、空调皮带轮、行星排齿圈等环形盘类锻件，达到了少无车削加工，是替代普通锻件的首选产品。

For many years ,by adhering to the principle of customer foremost,Shanghai Saini Company has been always engaged in the production of R series coaxial hard gear surface column gear speed reducers, S series gear worm speed reducers, F series parallel axis gear speed reducers, K series spiral umbrella gear speed reducers, RV series worm speed reducers, MB, MBN planet taper disc stepless speed variators, WH/WB series high power gear speed reducers, cycloid pin gear speed reducers and other types of universal and special speed reducers.

多年以来，上海赛尼传动设备有限公司秉着客户至上的原则，专业生产WR系列同轴式硬齿面圆柱齿轮减速机，WK系列弧齿锥齿轮硬齿面减速机，WF系列平行轴斜齿轮减速机，WS系列圆柱蜗杆减速机，RV系列蜗杆减速机，MB、MBN行星锥盘无级变速机等其他类型通用的和专用的减速机，被广泛应用于舞台机械、食品、包装、陶瓷、制药、纺织、环保等诸多领域。

An auxiliary power motor with improved structure includes wheel shell, rotor ring, stator plate, central wheel axle and control circuit.

一种改良结构的辅助动力马达，包括轮壳、转子环、定子盘、中心轮轴及一控制电路，转子环的内环面埋设磁铁，定子盘周围固设环形矽钢片，其外环面具有多个T形齿牙，其齿数为非转子环磁铁数的公倍数，矽钢片设有三相星形线圈绕组，且于定子盘电机最佳启动角度处设有霍耳元件组；借此将定子盘固设于中心轮轴，令轮壳夹设住转子环并套设于中心轮轴两侧，当转子环旋转时，即可降低磁极间的钝齿转矩，令电动车行进更加顺畅无噪音。

The results show that the movements of tongue during swallowing are related to the dentofacial morphology especially in the motion magnitude of the early final phase, while only few correlations are found when analyzing the duration and speed of swallowing.

结果显示：舌头吞咽运动与齿颜面形态间是有相关的，尤其以早期终止期的运动振幅和齿颜面形态的相关性最为显著，而运动持续时间及速度与齿颜面形态间较无相关。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。