In this article,the author introduces some installation technologies of integral steel box girders,such as applying simple equipment to draw across the bridge piers with a winch,and using lifting device to dropped girders into place,which is applicable in practice to installation of structure in large size.
介绍整体式钢箱梁应用简易设备牵引过孔、升降装置落梁就位的施工技术,为大体积构件安装提供借鉴。
The offshore drilling platform jacking gear is divided into two parts——the electric driving and the hydraulic actuation.
海上钻井平台升降装置分为电驱动和液压驱动2种,电驱动升降装置故障率较高,应用较少;液压驱动升降装置稳定性高,应用较广泛。
The Fatigue Analysis of Jack-up Platform Jacking System;
自升式海洋平台升降装置疲劳强度分析
Hatch covers handled with the aid of a lifting appliance shall befitted with readily access ible and suitable attachments for securing theslings or other lifting gear.
用起重设备开启或关闭的舱盖应装有易接触且合适的附属装置，供紧固吊链或其他升降装置。
This ceiling lamp lifter can be applied in the ceiling lamp to make changing spare parts and cleaning simple and convenient.
好老公"吊灯升机，是家居厅堂、店、育馆、业厂房车间等场所安装在高空的灯具必配的升降装置。
proximity protection device
防夹装置〔升降机〕
lifting appliance
升降设备, 提升装置
enclosure of a liftway
升降机槽的围封装置
bay assembly lift adapter
组舱式挂弹装置升降机
the landing gear of a helicopter.
直升飞机降落的传动装置。
Design on Guiding Unit of Lifting Device for Casting Machine
铸造设备中升降机构导向装置的设计
Study on Safety Testing Device for Prevention of Construction Lift from Falling - Down
施工升降机防坠安全器测试装置的研究
Dynamic Simulation and Parametric Design of Elevator Safety Device;
升降机安全装置动力学仿真及其参数化设计
Improvement of the Lifter for the Tinsel Embroidery Device in the Computer Embroidery Machine
电脑绣花机金片绣装置中升降机构的改进
A device used to produce a stage effect, especially a mechanical means of lowering an actor onto the stage.
舞台装置一种制造舞台效果的装置，特指用机械升降方式把演员置于舞台之上
A device that raises and lowers the warp threads on a loom.
排成纵向在织布机上将纵向丝线升高或降低的装置
a flashy expensive car with all sorts of gimmicks like self-winding windows
装置有各式小革新如自动升降窗的豪华昂贵汽车.
Technician was adjusting air valves on pallet elevator behind the safety guard.
该技工实际上是在调整安全装置后面的托盘货物升降机的气阀。
The Research of Monitor and Control System of Hydraulic Lifter in Heavy Metallurgy Stuff Basket Cartage;
重型冶金料篮车升降液压装置监控系统开发与研究
Simulation Research of Dynamic Characteristics on Shipboard Hydraulic Elevator with Two End Buffers
有双端缓冲装置的船用液压升降机动态特性仿真研究