中心轴

When you observe the minor and major axes of the ellipse we see that the minor axis goes through the center of the square while the major axis does not.

这时你会观察到椭圆的次轴经过其中心区域，而主轴则没有。

The utility model is characterized in that a commonly used escalator which is formed by a plurality of active rundles and handrails is assembled on a vehicle, and the drive force of the escalator is suppplied by the vehicle through the mechanical transmission system; a mechanical transmission system is added in the vehicle and the mechanical transmission system mainly transmit the dynamic energy to the escalator carried on the vehicle, the rundles and the handrails can move in positive or opposite direction synchronously; a hydraulic power transmission system is added in the vehicle, and then the hydraulic power transmission system mainly transmit the dynamic energy to the escalator carried on the vehicle as well as related hydraulic power transmission devices or facilities; the whole vehicle-carrying escalator is supported by the supporting facilities, or the whole vehicle-carrying escalator moves upwards and downwards taking the axle direction which movably connects the lower end and the tail end of the vehicle as center.

其主要技术特征是：将主要由若干节活动梯级、扶手带等组成的现代所通常使用的自动扶梯安装在机动车上，并使自动扶梯的主动力部分由机动车通过机械传动系统供给；在机动车上增加机械传动系统，该机械传动系统主要向所载的自动扶梯传递动能，并使自动扶梯的梯级和扶手带能够同步正向或反向运动；在机动车上增加液压传动系统，该液压传动系统主要向车载自动扶梯的相关液压传动装置或设施传递动能，并在机动车的液压传动作用下，使支撑设施支撑整体车载自动扶梯，或使车载的自动扶梯以下端与机动车末端活动连接的轴向为中心整体升、降运动。

Motorola Electronics Ltd Co, General Electric Ltd Co, Shell Nanhai Petrochemical Ltd Co, Taiwan CTCI Engineering Co, Umicore Automobile Catalyst Ltd Co, China Mining University, China Construction 6th Bureau Engineering Co, China Railway 18th Bureau Engineering Co, Arch Chemicals Co, Squibb Pharmacy Co, Ikea Furniture Ltd co, China Nuclear HuaXing International Construction Co., TECHLINK Semiconductor Co., Wuxi China Resource Micro-Assembly Tech., Ltd, JinSheng Office Articles Co., Mattel Toy Ltd Co, Yiquan Plastics Electrics Ltd co, Academy Nobel Metal Ltd Co, CLC Guangxi Electric Power Ltd Co, Johnson Matthey Catalyst Ltd Co, Delta-Cimic Co., ZeRong Box Ltd Co, Nanjing Hongguang Autoliv Vehicle Safety System CO.,LTD, ShengZhen Hazardous Waste Treatment Plant, Shanghai CDC, Shanghai Stuart Ltd Co, Kunshan Yahong Plastics Co, MeiXin Plastics Co, Suershou Engineering Equipment Co, Sulzer Shanghai Ltd, Baxter Medical Co, Daikin Air Conditioner Co Ltd, Omron China Ltd Co, Dare Science and Tech Co, Hudong-Zhonghua Shipbuilding Co., Ltd, Wansheng Vantrans Axis Co.

摩托罗拉电子有限公司、通用电气有限公司、壳牌石油南海项目、台湾中鼎海外工程公司、优美科汽车催化剂有限公司、中国矿业大学、中建六局工程公司、中铁十八局工程公司、奥麒化工公司、中美上海施贵宝制药有限公司、宜家家具配件有限公司、中国核工业华兴建设有限公司、得力半导体公司、无锡华润安盛科技有限公司、津盛办公用品公司、美泰玩具有限公司、艺泉塑料电子有限公司、艾可迪贵金属材料有限公司、中电广西防城港电力有限公司、万丰催化剂有限公司、中达电通、泽荣箱包有限公司、南京宏光奥托立夫、深圳市危险废物处理站、上海市疾病控制预防中心、上海斯图尔特有限公司、昆山亚宏塑胶、美欣塑胶制品、苏尔寿工程机械、苏州百特医疗、大金空调、欧姆龙、大亚科技、沪东中华造船厂、万圣轴业集团、中国北车集团唐山轨道客车有限责任公司、上海康诚仓储有限公司及万创危险品物流等。

In the study, we have found that when the long axis of an elliptical transducer is 2.5 times of the distance between nodal line and the plate center under free boundary condition, the depth of the first dip in mid frequency range of SPL spectrum can be greatly reduced.

从这些关系中可以得到激振器长轴是在自由边界条件下，节线到振动板中心距离的2.5倍时，中音谷会得到比较平缓的结果。

The MIMS then performs a series of orthogonal dynamic rotation tests to determine the moments of inertia about a set of orthogonal axes passing through the CG.

MIMS进行一系列直交动态转动试验，决定一系列直交轴通过中心的惯性力矩。

The picrite field, located in the southwest of Emeishan continental flood basalts and with the center in Lijiang—Dali—Panzhihua triangular area, is about 5×104 km2 and regarded as the axial area of the Emei mantle plume.

峨眉山大陆溢流玄武岩的西南部以丽江、大理和攀枝花三角区为中心的苦橄岩分布区，面积约5×10 4 km2 ，为峨眉地幔柱的轴部区。

A Study on Fraunhofer Double-Slit Diffraction by Applying Simulation Technology;2. Based on Kirchhoffs theory,the approximate intensity formulas of double-slit diffraction of Gaussian Beam is derived under paraxial approximation with power series expansion methods.

依据基尔霍夫衍射理论，利用幂级数展开的方法推导出旁轴条件下高斯光束双缝衍射的近似光强计算公式，并通过数值计算对双缝衍射的基本特性进行了讨论，得出了与其他文献一致的结论，得出了高斯光束下的双缝衍射极小值点比平行光束双缝衍射的极小值点向外移，观察屏中心光能变小；光强分布可由激光斑在衍射屏处的参数调制的结论。

It is found that the wing crack extend along a curved path and gradually approximate to the line which passes the middle point of the main crack and is parallel to the direction of maximum principal stress.

采用数值和试验的方法对翼型裂纹的扩展路径进行分析，发现单轴下张开型裂纹的翼型裂纹的扩展路径逼近于过原主裂纹中心点、平行于最大主应力的一条直线。

We also observed and measured the distance and section of some muscles such as long muscle of neck、long muscle of head、sternocleidomastoid、trapezius、longissimus、inultifidus、splenius、semispinal muscle of head、semispinal muscle of neck、anterior scalene、middle scalene 、posterior scalene et al. We achieved the moment of force and downloaded the force in the model .We also added gravity of head.

通过横截面积肌力计算法，测量尸体颈椎周围的主要肌肉：胸锁乳突肌、斜方肌、头长肌、颈长肌、肩胛提肌、夹肌、前斜角肌、中斜角肌、后斜角肌、多裂肌等的横截面积及其与颈椎纵轴的中心距数值，求得力矩值，直接或根据力矩等价公式间接的将肌力值加载于模型体表各点。

L Using dual-hydraulic self-centering clamps clamp the workpiece, the two central hole coaxial with high precision.

l 采用双自定心液压夹具夹持工件，两中心孔同轴精度高。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。