round bottom construction

Base on the experimental study,a method for calculating the base stress of the opened bottom cylinder structure is .

在此基础上,提出了沉入式无底圆筒结构基底压力的计算方法。

This paper discusses the reason and harm of incomplete penetration rounded welded root of titanium alloy cabin with lock bottom structure in air-to-air missile,and presents several solutions of this problem.

对空空导弹钛合金舱体插接锁底结构圆周焊缝根部未焊透的产生原因和危害进行了讨论,提出了几套解决和防止根部未焊透缺陷的工艺方案。

Discussion on scraper ore drawing bottom structure in block caving

自然崩落法铲运机出矿底部结构的探讨

The vertical and parallel relations of the trench with drill drift are summarized by the bottom structure disposal design on inclined orebody footwall.

通过对倾斜矿体下盘底部结构的设计,总结了堑沟与凿岩巷道在垂直与平行位置关系,经比较和验算后合理设计底部结构,减少了开采损失贫化。

The effects of bottom structure of submerged nozzle on the flow field and temperature field of molten steel in the mold were analyzed and compared.

比较和分析了浸入式水口底部结构对结晶器内流场和温度场的影响,为优化浸入式水口结构参数提供参考。

The characteristics of overall shrinkage stop ing and stoping process accepted in Miaoling Gold Mine are generalized,and the s tructural parameters,base structure of stopes and stoping experience are introdu ced.

文中总结了庙岭金矿留矿全面采矿法特点和回采工艺,介绍了采场结构参数、底部结构及矿柱回采经验。

The stability of the base structure for the fracture rock-mass of great stress area in Jinchuan lean ore area mining by natural caving process is analyzed by the three-dimensional elastic-plasticity finite element numerical analogy.

采用三维有限元弹塑性数值模拟方法 ,分析金川贫矿区高应力破碎岩体自然崩落法开采过程中底部结构的稳定性。

Exploration on chassis structure of HZD-400 arc stacker;

HZD-4000弧形堆料机的底盘结构探讨

After analyzed chassis structure of Italian Solimec Company made R series 622HD and 625 hydraulic piling rigs,discussed failure causation of swaying telescopic chassis.

通过对意大利SOL IMEC公司生产的R系列622HD及625旋挖钻机底盘结构的分析和摆动伸缩式底盘失效的原因的探讨,提出了在不改变原设计结构的基础上,更换铰接油缸的活塞杆,在杆头中心位置钻适当直径的通透孔,在履带箱相应部分加一铰耳,制作一套连接活塞杆与铰耳的组合式连杆机构,将R-622HD旋挖钻机的底盘铰接油缸斜推方案改进为底盘铰接油缸斜拉斜推的改进方案,同时建议旋挖机生产厂家改进履带链,加装密封圈,采取润滑方式的链结结构以延长履带的寿命。

Design Research for the Bow Structure of Bulk under Slamming;

散货船船艏底部结构砰击加强的设计研究

Propagation of water wave over a periodically perforated bottom and the band structure

水波在周期性钻孔底部结构中的传播及其能带

Discussion on scraper ore drawing bottom structure in block caving

自然崩落法铲运机出矿底部结构的探讨

Stability of Stope Structure Influenced by Joint in Jinqingding Mine

金青顶矿区节理对采场底部结构稳定性的影响

The stability of the base structure for nature caved mining can be assured by use of the gradual supports of draw drifts.

巷道采取多次让压支护措施,能确保底部结构的稳定。

families at the Base of a socioeconomic pyramid

位于社会经济结构底部的家庭

A structure that supports the end of a bridge.

桥台支撑桥梁底部的结构

Study on Seismic Property of Shear Wall Structures with Large Space at Lower Part;

底部大空间剪力墙结构抗震性能研究

A cuplike structure around the base of the stalk of certain fungi.

菌托某些真菌围绕茎的底部的杯状结构

Base; road Base [highways]: The part of the road structure Below the Base course and above the sub-base.

路床[公路]:基层之下底基之上的道路结构部分。

The Processes Parameter Controlling of Non-flow Battom Soldering Paste of the FCB Compositon

倒装芯片结构中不流动底部填充工艺参数

Study and Application of Shape Memory Alloys Dampers in the Earthquake Resistant of the Structure with Base Big Space;

SMA阻尼器在底部大空间结构中的应用研究

Research on Mechanical Properties of Special-Shaped Columns Structures with Reduced Columns at the Bottom and Transfer Stories;

底部抽柱带转换层的异形柱结构受力性能研究

Analysis on Seismic Response of the Shear Wall Structure with Large Spaces at Lower Part;

底部大空间剪力墙结构的地震响应分析

The Discussion of Construcfion s Choice for Brick Masonry Building with Frame-Shear at the Bottorn;

底部框架抗震墙砌体房屋结构选型的研究

The Bottom Weak Structure of Story Isolated Theory and Application Research

底部柔弱结构层间隔震机理与应用研究

Retrofit of Soft First Story Structure Using Seismic Isolation Technology

底部薄弱层结构的柱顶隔震加固改造设计

Analysis and Disposal of Sealed Structure Burst at Boiler Horizontal Flue Base

锅炉水平烟道底部密封结构爆裂分析与处理