A healthy human spine has a natural S-shape, but sitting pushes the lower lumbar curve into more of a C-shape so that the back and abdominal muscles designed to support the body are unused. 健康人的脊柱呈自然的S形,但坐姿把腰部往后推成“C”形,使本该支持身体的背部和腹部肌肉失去了作用。
Finite Element Analysis to Fatigue Life of the S-shape Bellows S型焊接金属波纹管疲劳寿命的有限元分析
A smooth velocity profile is obtained by the connection of the S-shape for the trajectory and the curvature based on the corner. 将拐角前后的S加减速和拐角区域内速度连接后,得到了平滑的速度曲线。
Dynamic Origin of the S-shape Demand Curve: A Population Model of Fashion Goods with Social Interaction among Consumers S形需求曲线的动态起源&消费者社会相互作用下时尚商品的群体模型
S-shape velocity profile is used to ensure the speed in line and circle machining. 在拐角前后使用S加减速进行加工,以保证直线、圆弧轨迹加工中的平稳;
The given hoist speed could be realized by S-shape speed curve which produced by PLC control software to increase speed regulation capability and precision. 提升机速度给定采用PLC控制软件生成S形速度曲线实现,可提高调速性能和精度。
Later, the love seat or courting seat had two sections, often in an S-shape. 后来的爱情座椅,或者叫做宫廷座椅,有两个部分,经常被做成“s”形。
A pointed arch having an S-shape on both sides. 两侧都有一个s形的尖顶拱。
The main cables of the Suspension Bridge of Runyang Bridge are protected with S-shape wire wrapping for the first time in China. 润扬大桥悬索桥主缆在国内首次采用S形钢丝缠丝技术进行主缆防护,其施工工艺与以往采用圆形软钢丝缠丝工艺有所不同。
A roofing tile with a s-shape; laid so that curves overlap. s型瓦片屋顶盖法;交叠弯曲摆放。
This paper analyzes three key transition points for the copper and aluminum per capita consumption S-shape track. 本文分析了铜、铝人均消费“S”形轨迹的三个重要转变点;
Quadrilateral speed-time curve A Real-time Looking-forward NURBS Interpolation Algorithm Based on S-shape 四边形速度时间曲线基于S曲线加减速的NURBS实时插补前瞻控制方法
According to its characteristics horizontal forging technology of S-shape cam and die have been designed. 根据S形凸轮结构特点,设计了其锻件毛坯的平锻工步及其模具。
The application and implement of S-shape curve of speed control of skin pass mill, the control principle and implement of automatic speed down during skin pass rolling, the smooth switch-over between tension control and speed control of coiler, the configuration of control system are described. 叙述S型曲线在平整机速度控制中的应用及实现方法,平整过程中的自动制动控制原理及实现方法,卷取机速度控制与张力控制的平滑切换,控制系统的构成。
The concentrations of chlorophyll and carotenoid of leaves presented S-shape change. 叶片叶绿素、类胡萝卜素含量呈S形变化;
The Experimental Stress Analysis of S-shape Elastic Element S型弹性元件的实验应力分析
Horizontal Forging Technology of S-shape Cam S形凸轮的平锻工艺
A new design of the S-shape cumulative charge with a tri-cone liner has been presented. Its jet property and penetrability have been studied numerically and analytically by the MFD code and the virtual multi-origin penetration theory, respectively. 简介了一种新设计的三维S形聚能装药,并用MFD程序及多虚拟原点侵彻理论数值和解析地分析了射流的特性及侵彻能力。
Every economy introduces many new products each year. Hence, many different S-shape curves start in every year. 一国经济每年都有许多新产品导入,从而每年有许多不同的S形曲线开始。
Design and Implementation of S-shape Acceleration and Deceleration Algorithm on CNC System CNC系统S型曲线加减速算法的设计与实现
A pollution harm index formula is presented based on an "s-shape" curve. The particle swarm optimization algorithms optimize the parameter in the evaluation model of the underground water quality. 提出了基于s型生长曲线函数的地下水水质评价的污染损害率公式,并采用粒子群优化算法对水质污染损害率公式中的参数进行优化。
We used piezoelectric smart structure and active vibration controlling technology as well as the FX-LMS self-adaptive arithmetic to control the vibration and noise generated by the S-shape thin-walled tube. A active controlling system is realized. 以某S型薄壁管结构模型为研究对象,利用压电智能结构,结合振动主动控制技术和FX-LMS自适应滤波算法,成功实现了振动噪声主动控制。
On the Dynamic and Static Analysis of Tall Building with S-Shape Shear Wall S形剪力墙结构高层建筑的动力与静力分析
By the design instance of extruding die with typical S-shape board material, the structural character of optimized die is stated, by validating of manufacture, using this die can greatly improve product quality and increase it using life. 通过典型的S板型材挤压模具的设计实例,阐述了优化后模具结构特点,该模具经过生产验证显著地提高了产品质量和模具的使用寿命。
In different canopy depths of all forests, the cumulative distribution curves of leaf areas index were S-shape; 各林分不同林冠深度的叶面积指数累积分布变化曲线均呈S型;
A sampled-data linear and S-shape acceleration/ deceleration for industrial robots and CNC machine tools were studied. 推导出了用于机器人及机床控制器前加减速的直线加减速和S形加减速的离散采样迭代公式。
Analyzing economic development and consumption in steel of each region, consumption tendency in each region are predicted using "s-shape" pattern. 通过对各个区域经济发展状况、钢铁消费水平进行分析,运用S形规律对不同区域钢铁消费趋势进行了预测。
The mine hoist computer control system can generate automatically the S-shape speed curve, preset the given speed value, and monitor and control the speed, so that the reliability and accuracy of the mine hoists can be ensured and thus its computer control can be realized. 本系统具有S形速度曲线自动生成、预置速度给定值、速度的监视与控制功能,从而保证矿井提升系统能可靠、准确和安全地运行,实现了矿井提升系统的自动化控制。
In motion control technology, NURBS interpolation technology, PID control technology and new S-shape speed control technology is researched deeply, and the corresponding algorithm software is programmed. Finally, motion controller system experimental platform is established. 在运动控制技术上,深入研究了NURBS插补技术、PID控制技术以及新型S型速度控制技术,并设计相应的算法软件。