By analyzing the technology of elevator collapsing to the bottom of pit, and carrying out the experiment, solutions are proposed in this paper.
通过一起电梯蹲底事故的技术分析及实验 ,找出原因 ,并提出解决方
The arc bottom trapezoid and the arc angle trapezoid is widely used in large irrigation areas becaused of its own characteristics.
弧底梯形及弧角梯形因其自身特点现在各大灌区中被广泛应用,但其水力计算极其繁琐,传统的手算工作量巨大,费时费力,且容易出错;通过应用简单的电算程序,避免了手工试算的麻烦,提高了工作效率。
And basing on forming process of simple box part, research on box part with step bottom is did, which can be referred for more complex part with curved surface bottom.
而阶梯底盒形件成形过程研究则是在普通盒形件成形过程研究的基础上,研究最简单的非平底面盒形件的拉深成形过程,为进一步研究曲面形状底面的零件的拉深成形提供参照。
The Arc Bottom Trapezoid and the Arc Angle Trapezoidal Cross Section Water Power Computation Program;
弧底梯形及弧角梯形断面水力计算电算程序
Arc - bed trapezoidal canal cross section applied in reconstruction Jiamakou irrigation district;
弧底梯形断面在夹马口灌区续改工程中的应用
cradle mounted fuel injection pump
弧形底安装式喷油泵
Fixing arc step aluminum alloy accommodation ladders
GB/T14360-1993固定弧形踏步铝质舷梯
Design of Trapezoid Spline Hob and Its Addendum Arc
梯形花键滚刀及其齿顶圆弧的设计
Study on disk cam mechanism with arc bottomed translation follower
弧底直动从动件盘形凸轮机构的研究
The analysis and application of the demension number of cuyved side trapezoid;
圆弧型曲边梯形尺寸数目的分析及应用
A Method for Calculating Critical Water Depth of Open Channel with Trapezoid Section and Smooth Slope
小底坡梯形明渠临界水深求法探讨
Improvement of calculation method for practical and economical cross-section of the trapezoidal channel with an arc slope angle
弧形坡脚梯形渠道实用经济断面计算方法的改进
Research of the frost heaving destruction mechanics model of the concrete lining channel in trapezoidal section with curved slop toe
弧形坡脚梯形渠道砼衬砌冻胀破坏的力学模型研究
Analysis of Effect of Transverse Prestressed Space Action of Arc Bottom and Wide Box Beam
弧形底宽箱梁横向预应力空间作用效应分析
Analysis on Transverse Effect of Urban Elevated Bridge with Broad Box Girders of Arc Bottom
城市高架弧形底宽箱梁桥横向效应分析
The area of a trapezoid is equal to the product of its altitude and half the sum of its bases.
梯形的面积等于其高与其两底和的一半的乘积。
Recovery of Ocean Depth Model of South China Sea from Altimetric Gravity Gradient Anomalies
利用测高重力梯度异常反演中国南海海底地形
Spring-mounted Injector Base: Apply cement onto insole evenly by following shoe bottom curve.
弹性底座胶盘机构：胶盘底座具弹性，可依鞋底弧度形状，均匀布胶于中底。
curved restraining shoe
弧形制动器,弧形制动闸
Design for a new type of cam mechanisms-disk cam mechanism with concave arc follower(一)
一种新型凸轮机构——凹圆弧底从动件盘形凸轮机构的设计(一)
<title>Minimum dimension design of disc cam mechanism with upright installed concave arc bottomed translating follower
正置式凹圆弧底直动从动件盘形凸轮机构的最小尺寸设计
