Do you understand? Call the assistant driller ( A.D.) or derrickmen down to help us.

The VDL Stud in Holland is the place to be if you are looking for a show jumper or dressage horse.

如果您正在寻找一匹障碍马或舞步马，位于荷兰的VDL种马场则是您不可错过的地方。

The modern-day dressage horse is definitely of the lighter type, with more thoroughbred breeding within its pedigree.

现代的盛装舞步马匹大多属于轻巧型，具备其自身家族谱系的纯种血统。

A Study on the Dynamic Behavior of a Pump-pipeline Hydraulic Transport System in Dredging Engineering

疏浚工程中泥泵与泥沙输送管道系统动态特性研究

Environmental Characteristic Analysis of Hydraulic Suction-centrifugal Dewatering Dredging Process

水力吸泥-离心脱水疏浚过程的环境特征分析

In the paper, it has been proved that it is possible to turn the Yellow River into clear water section by section based on the latest research results and practical experiences on hydraulic dredging in hyper-concentrated water of reservoirs and long-distance conveyance of flow with high sediment content.

文章根据水库高含沙量水力吸泥清淤及高含沙量水流长距离输送的最新研究成果和实践经验，论证了黄河可以分段变清。

This paper presents the research background of 1m 3 inland waterway hydraulic dredging grab, discusses the physical properties of grabbed object and excavating mechamism in accordance with the object.

简括了1m3内河液压疏浚抓斗的研究背景，探讨了抓取对象的物理性质及针对该对象的挖掘机理。

Research on 1m 3 Inland Waterway Hydraulic Dredging Grab

1m~3内河液压疏浚抓斗的研究

Application of hydraulic dredging and back-filling technique in earth dam construction

水力冲填技术在土坝施工中的应用

This leaf dredging up machine is characterized by the advantage of simple structure, convenient handing, high rate of taking off caffeine, and saving water and energy.

茶叶捞青机具有结构简单、操作方便、咖啡因脱除效率高、节水节能的特点。

Application of hydraulic dredging machine on the hydraulic antischistosomiasis projects

水力挖泥机在水利血防工程中的应用

Design and test of the portable dredging machine based on Bernoulli effect

基于Bernoulli效应的便携式清淤机设计及试验

The effect of river dredging and dike strengthening project on reducing the cost of flood control project in estuarine channel of the Yellow River

挖河固堤工程对降低黄河河口河道防洪工程建设投资的作用

Firstly, it analyzed physical and chemical characteristics, rock mechanic quality and pollution conditions of river dredging sediments.

首先，对河道疏浚底泥的理化性质、岩土力学性质及污染情况进行了分析。

Application of cutter-suction dredgers to river dredging on the lower Yellow River

绞吸式挖泥船在黄河下游挖河疏浚中的应用

Characterization of river dredging silt and its feasibility study as covering materials for refuse landfill

疏浚污泥的表征及其作为垃圾覆盖材料的可行性研究

The discussion on City-river Dredging

城市滨湖整治探讨

Large marine grab excavators are the main tool for river dredging.

大型船用抓斗挖掘机是河道疏浚的主要工具。

Determination of water conveyance line for river dredging project on lower Tarim River

塔里木河下游河道疏浚工程输水线路选择

Combining the repairing method and application requirements of dredging pump shell, the paper introduces constitutions and functions of the double metallic pressing board used in securing high alloy cast iron liner, and explains the brazing process and manufacturing characteristics.

结合绞吸挖泥船泥泵壳修复方法，介绍了泵壳内衬高合金耐磨铸铁镶块固定所用双金属压板的作用及其组成，叙述了双金属压板的浸润焊制造方法的特点及其工艺过程。

This paper describes how to increase the productivity effect of cutter-suction dredgers in the fields of cutting force, dredging pump, gauge pile and exhaust pipe.

本文从绞刀、泥泵、定位桩装置及排泥管等四个方面，论述了提高绞吸式挖泥船生产效率的途径。