查询词典 dredger

Designing of dredging device for bucket dredger , such as the design and calculation method of bucket chain device, determination of the length of bucket chain as well as other relative construction problems.

它直接关系到生产效率，船的寿命及经济效益。本文从理论和实践经验阐述其设计中的主要&热点&及如何予以解决。

It is proved through model hydraulic experi-ments that the pumps are characterized by superior efficiency and cavitation performance,satisfying the opera-tion requirement of 1600 hp bucket wheel dredger.

研究开发的5个泵型，效率指标均超过了86％，达到国际领先水平，研究成果显著提高了我国泥浆泵领域的技术水平，可广泛使用于不同类型挖泥船及各种疏浚场合。

Operating a modern and well-balanced dredger fleet which consisting of over 80 large and medium dredgers and auxiliary vessels, including TSHDs, CSDs, bucket wheel dredgers, hopper barges and many other various service equipments, the annual dredging capacity of GDC is up to 100 million m3 and it can meet the needs of constructions under various conditions.

公司拥有一支门类齐全、船型均衡发展的疏浚船队，包括耙吸、绞吸、斗式等各类大中型现代化挖泥船和辅助工程船舶共80多艘，年疏浚能力已超过1亿立方米，能适应各种工况条件下的工程施工要求。

Nanjing Changjiang Waterway Engineering Bureau currently has the Netherlands, Japan and China to build its own large and medium-sized aircraft from harrow suction, suction, chain bucket, grab dredger, blowing mud vessels and other vessels dredging ships, as well as a large number for the dredging, fill supporting the use of auxiliary vessels and ancillary equipment such as sludge pipeline.

长江南京航道工程局目前拥有荷兰、日本和我国自行建造的大、中型自航耙吸式、绞吸式、链斗式、抓斗式挖泥船、吹泥船等多艘疏浚工程船舶，以及大批为疏浚、吹填配套使用的辅助船舶和排泥管线等辅助设备。

Cement and quick-lime were selected as addition because of their common and easy to popularize. The effects of these two additions on the dredger fill samples in stiffness and consolidation speed were tested and compared within a cylinder-shaped experimental container.

选取水泥和生石灰这两种较为容易推广的普通材料作为添加剂，分析了添加剂对吹填土固结强度的影响，同时将添加了水泥和生石灰的吹填土的固结速度进行了对比研究，结果表明：添加剂的添加有利于加快吹填土固结。

In this article, authors introduce several construction technologies adopted in vacuum precompression strengthening construction of Nansha Harbor including treating surface of dredger with earthwork textiles, handling high sediment percentage sand cushion with level drainage boards, and sealing techniques combining long and short agitation walls.

介绍在南沙港区真空预压加固施工中，采用土工织物对吹填淤泥进行表面处理、水平排水板处理含泥量高的砂垫层及长短搅拌墙相结合的密封技

The vibration characteristics of the rotor system of the dredge pump in a dredger (1750 m3/h) are calculated and analyzed by using FEM.

主要研究内容包括： 1、介绍了旋转机械中各种典型故障产生的机理及识别特征，对信号处理及分析的方法进行了研究； 2、采用有限元方法对泥泵转子轴进行了模态分析和谐响应分析。

The influence of the eccentricity mass moment, position of mass center and the bearing stiffness to the vibration characteristics of the rotor system is discussed in detail; 3. To verify the exactness of FEM and learn the principle of vibration of dredge pump further, The orbit of the rotor shaft of the pump in the dredger is measured, the measurement results show: the repeat of the orbit of the rotor shaft is very bad when dredge pump is in the dredging mud condition.

模态分析确定了泥泵的振动特性；谐响应分析确定了泥泵转子轴在偏心力的作用下轴截面处的最大响应位移；研究了转子轴的质心位置、轴承刚度和质量偏心矩对转子轴振动特性的影响； 3、采用轴心轨迹法，实船测量了泥泵轴工作时振动响应值。

Bull;8 to perform his or her duties as provided for captain in Duties for Dredger Captain and on-deck Crewmen .

按《挖泥船船长和甲板部各岗位职责》中关于船长岗位职责的规定履行日常操作职责。

There has been various large-scale dredgers used for broad rivers, and the technique is already very mature, but producing such a dredger costs more than ten millions. In addition, they can only be applied to large-scale fields. it's incapable for narrower fields, such as pools and ditches in suburbs, the corners of dike and so on.

世界上已有的用于大型江河湖泊清淤的各种不同的挖泥船技术已经相当成熟，但制造这样一艘挖泥船所需成本高达上千万，而且它只能应用于作用面积极大的场合，对于水域狭窄的郊区、农村的沟渠、池塘和溪流以及堤岸死角等处的清淤就爱莫能助了。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐