The first post was the Depression-era photo of New York construction workers lunching on a crossbeam hundreds of feet in the air. 他们发的第一张历史图片是大萧条时期,纽约建筑工人坐在数百英尺高的一根横梁上吃午餐。
Calculation of lateral buckling critical load of crossbeam on frame for hoisting blowout preventer. CPM 封井器吊装架横梁的侧向屈曲临界载荷计算
Investigate and Design the Adjusting Crossbeam Balance of Gantry MC 龙门式加工中心横梁调平研究与设计
Because the gravity of the fuselage, obstruction and rotating the aerodynamic lift on the blade wheel, pneumatic pulling force needs transmitting through the crossbeam. 由于机身的重力、阻力和旋转叶片轮上的气动升力,气动拉力都需要通过横梁传递。
In this paper, the three degrees of freedom dynamic equations of gas-floating crossbeam based on composite control of aerodynamics-mass moment are derived for the first time. 推导了基于气动-质量矩复合控制的气浮十字梁三自由度运动动力学方程,对纵向运动模型进行了数学仿真和实物实验。
For example, the research document of the bearings and crossbeam layouts of the irregular bridge with lager ratio of wide-span and other. 如宽跨比大的异型桥梁的支座布设及横隔梁设置等方面的问题,相关的研究文献极少。
In more complicated twills the progression may vary, but the diagonal effect will remain visible. Obique bridge is made up of main girder crossbeam and bridge floorings. 在比较复杂的斜纹组织中,纱线的飞数可以变化,但斜纹线依然可见。斜交桥由相互斜交的主梁、梁及桥面板组成,结构受力复杂。
The CAT System of Normal Stress in Crossbeam Wind 横梁弯曲正应力计算机辅助测试系统
Based on analysis of structure and function of bridging diamond circular saw, and in order to reduce the manufacture costs, the crossbeam structure of diamond circular saw was redesigned. 在研究分析桥式金刚石圆盘锯结构、功能的基础上,对金刚石圆盘锯横梁结构进行重新设计以达到降低生产成本的目的。
The utility model discloses an elevated type basketball stand suitable for middle and elementary schools, and comprises a rim, a backboard, a crossbeam, an upright column, and a bottom seat. 本实用新型公开了一种适用于中小学校中使用的可升降式篮球架。
The main structure, such as: main beam and crossbeam and outrigger, is made of box beam with perfect strength and rigidity. 主梁、横梁、支腿等主要结构为箱形梁,强度与刚度好,制造工艺简单;
Development of Welding CAPP System for the Crossbeam of the Bridge Crane 桥式起重机主梁焊接CAPP系统的开发
If heavier articles are held, the reinforced crossbeam and the pallet body can be plugged and combined to form the pallet which can hold heavy articles. 如承置较重物品时,则将加强横梁与栈板本体的相插拼组合,以形成了可承放重物品的栈板。
In order to test the crack of the stroke oar leafs crossbeam of a certain helicopter, we need to design a special transverse wave probe. 为了检测某型直升机尾桨叶大梁的裂纹,需要设计专用横波探头。
The infusion bottle is hung above the arm of the crossbeam. 输液瓶悬挂在横梁的吊臂之上。
Clamped on the crossbeam is a rotatable board, one side of which is lacquered with colored paint, and a basketball net ring is arranged on the other side of the rotatable board. 横梁上装夹一块可旋转的板,板的一面漆上有色漆;另一面装配一个篮球网圈。
Dynaform-based design and numerical simulation of die profile for automobile crossbeam 基于Dynaform的汽车横梁模具型面设计与数值模拟分析
Finally, the experiment on the impulse excitation on crossbeam of electronic cabinet proves that the data acquisition system is feasible. 最后通过对电子机柜横梁做激励试验,验证了数据采集系统的可行性。
Analysis of the Coordinating Activity between Canopy Traits and Yield Structure in Hybrid Wheat Obique bridge is made up of main girder crossbeam and bridge floorings. 杂交小麦冠层性状与产量结构间的协调性分析斜交桥由相互斜交的主梁、梁及桥面板组成,结构受力复杂。
Frame: the frame is made into a space frame structure, including the welded longitudinal beam and the whole pulling-through crossbeam, of which are made of16Mn vehicle steel. 车架:车架采用16Mn车用钢板制成的焊接式纵梁和整体贯穿式横梁组焊而成的空间框架结构。
FRP Stairwell consists of crossbeam, joist, fence, sealing plate, hook, ladder and slab. 玻璃钢梯子间由大梁、小梁、栅栏、密封板、挂钩、梯子、平台板等组成。
The Topological Optimation Design and Analysis for Gantry Machine Tool Crossbeam Component 龙门加工中心横梁部件的拓扑优化设计与分析
Connecting the crossbeam to the apex of a triangular truss. The girders are carried on trestles. 连接大梁和三角孔桁梁顶点的支柱。
Design of Crossbeam Synchronous Control Protection System of Double-column Vertical Lathe 双柱立式车床横梁同步控制保护系统的设计
Study on the Bionics Algorithm and Its Application on Structure Optimization Design of the Oil Hydraulic Press Crossbeam 仿生算法及其在油压机结构优化设计中的应用研究
The position of crossbeam of H pylon style is higher, the longitudinal and torsional buckling resistance is larger. H形桥塔随横梁的上移,其抵抗面内失稳和抗扭转能力明显增加;
Spring bow ( drawing instruments) Application of FHT Collision Proof Crossbeam and Safety Catch Holding Apparatus 弹簧圆规(绘图仪)FHT型弹性防撞梁及缓冲托罐装置的应用
Finite element analysis on ultimate bearing capacity of high-pile wharf crossbeam 高桩码头横梁极限承载力有限元分析
Research on Mechanical Properties of Oblique-Crossing Annular Plane of Concrete-Filled Steel Tube Obique bridge is made up of main girder crossbeam and bridge floorings. 钢管混凝土柱斜交环板受力性能研究斜交桥由相互斜交的主梁、梁及桥面板组成,结构受力复杂。