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.
港口门座起重机是港口装卸作业的主要起重设备。
The portal crane is the main hoisting equipment for loading and unloading in the port.
单臂架门座式起重机结构简单、起重量大自重轻。
Simple arm frame gantry crane structure, lifting large light weight.
本系统已用于三个不同吨位小型门座起重机的设计。
The system has been used in the design of three light duty portal cranes with different lifting capacity.
四连杆组合臂架是门座起重机最常用的变幅机构形式之一。
The four-bar combination jib is one of the most commonly used forms of the derricking mechanism for portal cranes.
本文还对振动监测技术在门座起重机上的应用，进行了深入的研究。
This paper also takes a deep research on the application of the vibration monitoring technique to the portal crane.
门座起重机是我国研制最早、具有重要代表性的一种旋转式有轨起重机。
The partially slewing crane is a kind of representative rotary rail crane, which is also the first developed type in our country.
本文介绍了一种计算门座起重机变幅机构驱动功率的新方法一瞬心回转功率法。
A new method of calculating the driving power of portal crane luffing mechanism is introduced in this paper.
最后作为复杂机械产品的应用实例，建立了港口门座式起重机的CAD系统模型。
As an example, we build the model of the portal crane CAD system to verify the above techniques and criterions.
造船系列门座式起重机具有起重量大、工作范围辐射面广、运行平稳、安全可靠等特点。
The shipbuilding series portal crane has such features as big lifting weight, wide work scope, stable operation, safety and reliability.
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.
本文论述了门座起重机小拉杆的损坏是由于在起重机变幅过程中，小拉杆承受较大的附加应力所致。
This paper discussed the wreck of the small pole of portal crane is because the small pole supported greater add working stress in range - changing process.
以艺术门座进行设计，金属门座是具有上海文化特色的石库门基本造型，门前竖立旋转型的世博会金牌。
The metal door frame is designed based on the model of Shikumen of Shanghai style, with a rotatable Expo gold plate in front.
随着变频器的日益普及，其在港口设备上得到了广泛的应用，门座式起重机也普遍采用了变频控制技术。
Along with popularizing of inverter increasingly, inverter is widely used in many harbour facilities such as portal crane.
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.
港口门座起重机是港口生产作业的主要装卸设备，其运行技术状态的好坏直接影响着港口的生产效率和经济效益。
Portal Cranes are the main handling facilities of the port production and the technological state of their performance affect the production efficiency and economic benefits of the port directly.
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.
制动轮是门座式起重机制动装置的关键零件，制动轮在生产制造和使用过程中的早期失效及热处理缺陷是影响生产成本及效率的重要因素。
The brake wheel is a key part of portal frame crane, and its earlier failure and heat treatment defect during manufacture and use is the key factor, which affects the cost and efficiency.
门座式起重机分单臂架和四连杆两种类型，起重机的起升、变幅、回转和行走四大机构均采用交流变频调速，整机采用PLC控制，使用性能优越。
Portal crane sub frame and four-link arm two types, from the crane hoisting, luffing, slewing and walking four agencies ac frequency control, the machine USES PLC control, superior performance.
一座高大的门挡住了通往后面的唯一入口。
他们会住在一座有一个绿门和新茅草屋顶的小房子里。
They would live in a small house with a green door and a new thatch.
这座敞亮的大厅的一头，由两座塔楼的窗户透进阳光，在门的两侧各形成一个小小的方框。
At one extremity, this spacious room was lighted by the Windows of the two towers, which formed a small recess on either side of the portal.
这是座宽敞的旧房子，有许多大窗户，许多门。
一所房屋是一块峭壁，一扇门是一种拒绝，一座建筑物的正面是一堵墙。
A house is an escarpment, a door is a refusal, a facade is a wall.
在一片广阔的草坪上，架着一座供装饰用的帐篷，帐篷的门朝着她的方向。
On the extensive lawn stood an ornamental tent, its door being towards her.
在2001年，一名为VincentLowe的杂物工进入到笼内去修复一座危险破旧的门。
In 2001 a handyman named Vincent Lowe went into a cage to repair a dangerously worn-down gate.
大约在公元前二千四百九十年法老门卡儿建造的第三座吉萨金字塔规模则相对前两座稍小一些.它的结构更加复杂.
The third of the Giza Pyramids is considerably smaller than the first two. Built by Pharaoh Menkaure circa 2490 B.C., it featured a much more complex mortuary temple.
用这铜做会幕门带卯的座和铜坛，并坛上的铜网和坛的一切器具。
They used it to make the bases for the entrance to the Tent of Meeting, the bronze altar with its bronze grating and all its utensils.
用这铜做会幕门带卯的座和铜坛，并坛上的铜网和坛的一切器具。
They used it to make the bases for the entrance to the Tent of Meeting, the bronze altar with its bronze grating and all its utensils.
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