起重机

But in the stage of the process, have four crane is preparing to lift the concert stage of ceiling, crane suddenly lost balance and 60 tons of stage in a loud bang in the roof collapsed, the stage and collapse.

但在舞台搭建的过程中，有四台起重机正准备将演唱会舞台的顶棚抬起，起重机突然失去平衡，60吨重的舞台顶棚在一阵轰隆巨响中坍塌，整个舞台也塌陷。

Our company's main products are: all kinds of cranes,jib cranes,hydraulic lifting platform,electric hoist,aluminum ladders,metal products,Balance crane and above all accessories,design and manufacturing modifications are not standard maintenance.

我公司主要生产的产品有：各种规格起重机、旋臂起重机、液压升降平台、电动葫芦、铝合金梯、平衡吊、电缆卷筒及以上产品的各种配件，并非标设计制造改装维修。

At present the main product lines: 1, Port Crane Series Second, bridge crane series; three, fixed belt conveyor series; four, a variety grab series, and to undertake their various standard configuration and pieces of steel structure of the design and processing and production.

目前主要产品系列：一、港口起重机系列；二、桥式起重机系列；三、固定带式输送机系列；四、各种规格抓斗系列；并承接其各种标准构件及钢结构件的设计加工和制作。

The bridge type hoist crane carries the goods to move in the rectangular plane depending upon the combination of the hoist crane movement mechanism and the car movement.

桥式类型的起重机是依靠起重机运行机构和小车运行机构的组合运动使所搬运的物品在长方形平面内作运动。

Column crane arm is a light and small lifting machine in which CD1, MD1 electric pulley and chain hoist are used t...

定柱式电动全回转旋臂起重机柱式旋臂起重机是CD1、MD1型电动葫芦及手拉葫芦配套使用的一种轻小型起重机械。

Since the formation of the company since the output value, profits and taxes increase, the annual average rate of increase of 42%, The products sell well in 30 provinces and cities, and exports in Nigeria and other non-state country, which for Baishan Hydropower, hydropower plant Yunfeng, Taipingwan hydropower plant transformation VVVF 250t crane for the transformation of energy-saving cycle Karamay sewage treatment equipment, scientific and technological progress awardsby Japan Ling electricity companies and the industry's highly praised,"Lu line" brand crane was rated as one country and other goods, an annual output value of 260 million yuan, profits and taxes 26 million yuan.

公司自组建以来，产值、利税大幅度增长，年平均递增率42%，产品畅销全国30个省市，并出口尼日利亚等非州国家，其中为白山水电厂、云峰水电厂、太平湾水电厂改造的250t变频调速起重机，为克拉玛依改造节能循环污水处理设备，获省科技进步奖，受到日本凌电公司和同行业的高度赞扬，&鲁行&牌起重机被国家评为一等品，年产值达2.6亿元，利税2600万元。

Suitable for vertical well drilling goisting, cage channel of vertical well drilling, port load and unload derrick ,and tower crane.

适用于开设立井提升、立井罐道港口装卸起重机、建筑用塔式起重机。

Applying the software ADAMS for dynamic simulation and Pro/E for three-dimensional design creates the mechanical system of virtual prototyping model of the 200t crawler crane. The models of the drag bar, the spring backstop, the luffer rope and the crawler in the system are established well by ADAMS/View module. The dynamic simulation of the complete mechanical system is researched at series of work condition, which occurs possibly the crawler crane boom backward tipping as the crawler crane unloads suddenly.

本文应用虚拟样机技术动力学仿真软件ADAMS，结合三维实体设计软件Pro/E构建了200t履带起重机的虚拟样机机械系统模型，并利用ADAMS/View模块完善了系统中拉板、弹簧式防后倾装置、变幅钢丝绳和履带模型：研究了履带起重机突然卸载时可能发生臂架后倾的一系列工况下，整机机械系统模型的动力学仿真。

The ideas of object-oriented technology and parametric design computation are combined to construct this parametric design system of overhead crane based on object-oriented technology. The corresponding technology are fully used to design and compute partial mechanism of overhead crane. This system makes the devisers design convenient and design period is shortened, and in the meantime work efficiency is improved.

基于面向对象技术的起重机参数化设计系统结合面向对象技术和参数化设计计算的思想，充分利用各相关技术，对桥式起重机部分机构进行设计计算，方便设计人员设计，缩短了设计周期，提高了工作效率。

It provides sales, marketing, after-sale service and spare parts for Liebherr products mainly focusing on hydraulic and wheel excavators, loaders, dozers and mining equipments; tower cranes, crawler and mobile cranes; aircraft equipments like landing gear, actuators and air management systems.

公司负责的主要产品包括液压和轮式挖掘机、装载机、推土机和矿用自卸车；塔式起重机、履带式和汽车式起重机；起落架，作动器和空气调节与管理系统等航空设备等。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。