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.
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.
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.
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.
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.
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.
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.
第二对法式对开门通向厨房的一个非正式用餐区，厨房的滑动玻璃门通向一座露台，造就了一道阳光明媚的走廊，从屋前一直延伸到屋后。
A second set of French doors opens to an informal dining area in the kitchen, where sliding glass doors open to a deck, creating a sunny corridor from the front of the house to the back.
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.
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.
这是座宽敞的旧房子，有许多大窗户，许多门。
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.
学习一门语言就像爬一座山。
客厅和餐厅的门通向宽敞的后院，后院里有第二座泳池、用于就餐或晒太阳的露台、橄榄树和柠檬树。
Doors in the living and dining rooms open onto the spacious back yard, which has a second pool, terraces for dining or taking the sun, and olive and lemon trees.
她十二岁那年，女巫将她关进了森林深处的一座高塔。这塔无阶无门，唯有其顶端开了一扇小窗。
When she was twelve years old, the enchantress shut her into a tower, which lay in a forest, and had neither stairs nor door, but quite at the top was a little window.
餐厅铺设瓷砖地板，设有三面落地窗，滑动玻璃门通向一座露台，露台悬在桑顿河上空。
The dining room has a tile floor and walls of glass on three sides, with sliding glass doors that open to a deck cantilevered over the creek.
英语不仅仅是一门学科，也是一座架起世界各国沟通交流的桥梁。
English is not just a discipline, but also set up a communication bridge between countries in the world.
中华门是南京城墙上最大的一座城门，也是世界建城史上最大的瓮城。
The Zhonghua Gate is the biggest gate in the wall, and it is also the biggest in the world.
房子有红色的屋顶、一扇门、几扇小窗户和一座满布绿草的漂亮花园。
It had a red roof, a door, small Windows, and a pretty garden covered with green grass.
起居和用餐区的滑动玻璃门都通向一座露台。
Sliding glass doors in both the living and dining areas open to a deck.
根据其关键构件的形式特点，中国古代木家具腿足可分为板足式、跗足式、立腿式、架座式、门式、托泥式等六种基本形式。
The forms and structures of ancient Chinese wooden furniture can be classified into six types: Board style, Instep style, Standing leg style, Pedestal style, Kunmen style, and Tray style.
根据其关键构件的形式特点，中国古代木家具腿足可分为板足式、跗足式、立腿式、架座式、门式、托泥式等六种基本形式。
The forms and structures of ancient Chinese wooden furniture can be classified into six types: Board style, Instep style, Standing leg style, Pedestal style, Kunmen style, and Tray style.
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