门座式起重机的工作机构振动历程有特殊性。
The vibration course of the working mechanism of the portal crane has its particularity.
土方发掘可用任何发掘机举行，如单斗发掘机、拉铲发掘机、蛤壳式挖泥机、起重机和铲运机等。
Excavation may be done by any of several excavators, such as shovels, draglines, clamshells, cranes, and scrapers.
最后，我们按照IBRAC技术的方法对虚拟门式起重机司机培训系统进行了分析与设计，并分析了门吊仿真系统的性能。
Finally, according to IBRAC technology, this virtual training system for portal crane drivers is analyzed and designed. The performance of this system is represented as well.
然后装上一辆卡车，沿着收费道路运行，进入中国招商国际操作的港口大门，接着被门式起重机吊起装上国际远洋轮船。
It is loaded onto a truck that travels along the toll roads, enters the port gate operated by China Merchants and is hoisted by a gantry crane onto an international ship.
根据《特种设备目录》，随车起重机属于起重机械中流动式起重机类，代码为4490，而液压升降平台车则属于起重机械中的升降机类，代码为4890。
According to the "special equipment directory", lorry crane which belongs to a hoisting machine in mobile crane, code 4490, and the hydraulic lifting platform vehicle is in crane lift type, code 4890.
对于起重能力高达1,350公吨的大型履带式起重机，利勃海尔还提供各种多功能副臂系统。
For its larger crawler cranes with lifting capacities up to 1,350 metric tons, Liebherr also offers a wide range of multifunctional jib systems.
塔式起重机，汽车起重机，轮式起重机和斗或叉式装载机。
Tower cranes, truck cranes, mobile cranes and bucket or fork loaders.
舰载特种起重机是我国正在研制开发的多关节、可折叠式船用起重机。
Carrier borne crane, a multi joint foldable one, is being developed in the country.
红印章背书对于通过跨省红色钢印的考试的合格的移动式起重机，塔式起重机，移动式起重机(液压)操作员也可用。
Red Seal endorsement is also available to qualified mobile crane, tower crane and mobile crane (hydraulic) operators upon successful completion of the interprovincial Red Seal examination.
在开箱·搬运·安装时，请使用吊滑轮，起重机，叉式升运机等辅助设备。
When opening, carrying or installing it, please use block and tackle, chain block, fork lift truck or other assistant devices.
移动式起重机操作员行业认证(液压)在魁北克省是强制性的，而在爱德华王子岛省是自愿的。
Mobile crane operator (hydraulic) trade certification is compulsory in Quebec and available, but voluntary, in Prince Edward Island.
文章详细介绍了超大型高架门座式起重机液压同步预升设备的工作原理和液压系统组成，并对液压系统进行了较全面的分析。
The paper introduces in detail the working principle and make-up of the hydraulic synchronisation lifting device for lifting a high portal crane and gives an overall analysis of its hydraulic system.
根据已有的试验和研究成果，总结推荐了桥门式起重机焊接箱形梁的疲劳参数取值。
Based on test data and research achievement available in literature, the fatigue parameters of welded boxes of overhead and gantry cranes are recommended.
型单梁门式起重机属桥架型的一种，适用于露天仓库货铁路沿线进行一般的装卸及起重搬运作业。
L single girder gantry crane is a bridge type, suitable for open storage for general cargo railway transport loading and unloading and lifting operations.
重点介绍WD120型桅杆式起重机的技术性能参数、构造特点及采用的多项先进技术。
The technical performance parameters, design features and multiple advance techniques adopted in model WD120 derrick crane are presented.
造船门式起重机是一种大起重量、大跨度、多功能、高效率的门式起重机械，专用于船坞（或船台）进行大型船体分段运输，对接及翻转作业。
Shipbuilding gantry crane a kind of gantry cranes of large lifting capacity, mare ultifunctions, and high efficiency which is dedicated for large hull staging, butt and flip operations in docks.
青铜峡水电厂4号半门式起重机投入运行已30余年。
No. 4 semi-portal crane has been used in Qingtongxia Hydropower Station for more than 30 years.
移动式起重机操作员需要省级的驾驶执照才可以在公共道路上驾驶移动式起重机。
Mobile crane operators may require a provincial licence to drive mobile cranes on public roads.
对国内一种新兴的建筑机械——擦窗机进行基本介绍，并对比擦窗机和门座式起重机，阐述两者设计的异同点。
The article introduce a new construction machine gondola, and makes a comparison between the gondola and the gantry.
造船用门式起重机是起重机的一种。
文内还简要地讨论了减振装置，提出有关轮胎式起重机减振分析与措施的几点初步意见。
Besides, this article discusses briefly the damping device and gives some views on the damping analysis and measures of the tyre crane.
柱式悬臂起重机多采用环链电动葫芦作为起升机构和运行机构，较少采用钢丝绳电动葫芦和手拉葫芦。
Pillar jib cranes to use more electric chain hoist hoisting mechanism and operating as a body, less use of wire rope electric hoist and chain hoist.
主梁是葫芦门式起重机的主要受力部件，主梁的质量直接影响到整机的使用寿命。
The main beam is the main hoist gantry crane force components, main beam directly affects the service life of machine.
汽车起重机是在通用或专用在载重汽车底盘上装上起重工作装置及设备的起重机，主要采用伸缩式臂架，油缸变幅。
Mobile crane is a general or special the heavy lifting the chassis on the work and equipment, cranes, retractable type mainly adopt the oil tank movement.
这是一种叫做轮胎式集装箱龙门起重机。
这种双摇杆变幅机构可用于浮式起重机的带载变幅作业，具有高的生产率和作业灵活性。
The double rocker mechanism (with back rocker driving) is used to luffing operation of floating crane. It has high productivity and transfer flexibility.
这种机器叫造船用门式起重机。
2008年全球移动式起重机租金调查报告。
The rental rates investigation of global mobile cranes of 2008.
四连杆门座式起重机采用最佳优化的组合臂架系统，具有水平落差小、变幅平稳、功耗低的特点。
Four-link portal crane using the best combination of optimized boom system, with horizontal small gap, amplitude stable, low power consumption.
四连杆门座式起重机采用最佳优化的组合臂架系统，具有水平落差小、变幅平稳、功耗低的特点。
Four-link portal crane using the best combination of optimized boom system, with horizontal small gap, amplitude stable, low power consumption.
应用推荐