双体采砂船,twin hull sand dredge
1)twin hull sand dredge双体采砂船
1.Because of the requirements of suction equipment and working condition, the structural design oftwin hull sand dredge is special, the cross-structure can\"t meet the specification requirements, which need to be calculated directly.本文运用有限元软件ANSYS,以一艘45米的双体采砂船为例进行了直接计算研究。
2)dredge[英][dred?][美][dr?d?]采砂船
1.Application of small-sizeddredge to the stoping of old tailing of Laozuoshan Gold Mine;小型采砂船在老柞山金矿老尾矿回采生产中的应用
2.The hydraulic system is a guarantee for the various functions of adredge.采砂船液压系统是采砂船各项功能顺利实现的保证。
英文短句/例句
1.Dredges are used in rivers, lakes, ponds and offshore shallow waters.采砂船可用于河流、泊、溏和近岸浅水。
2.bulge ore-and RoRo carrier散货、矿砂、滚装三用船
3.orebulkoil carrier矿砂散装石油多用船
4.oil bulk ore carrier石油-散货-矿砂运输船
5.oil bulk ore ship石油散货矿砂运输船
6.General Design of 400000 DWT VLOC400000DWT矿砂船总体设计浅谈
7.Study on Cold Production Mechanisms of Poorly Consolidated Sandstone Heavy Oil Reservoirs;疏松砂岩稠油油藏出砂冷采机理研究
8.The reasons of the sinking accidents frequently happened involving vessels being loaded with sands in the areas under the jurisdiction of Ningbo and control measures to be taken宁波辖区运砂船装砂作业期间沉船事故频发的原因和防范对策
9.Research on Heavy Oil Thermal Recovery Sand Production Prediction and Sand Control Methods Optimal Selection Technology;稠油油藏热采出砂预测与防砂技术研究
10.A place where a placer deposit is washed to extract its mineral content.砂矿开采地一个用来清洗出有用矿物的砂矿开采地
11.The bridge was rammed on Friday by a boat loaded with sand.该桥是由一艘运砂船于周五撞塌的。
12.a soft sandstone used for scrubbing the decks of a ship.一种软质砂岩，用于洗磨船的甲板。
13.Iron Ore Charter Party日本航运公会铁矿砂运输租船合同
14.Experimental Investigations of Springing Responses of an Ultra-Large Ore Carrier超大型矿砂船波激振动模型试验研究
15.Seekeeping Analysis of a 400 000 dwt Ultra Large Ore Carrier40万DWT超大型矿砂船耐波性分析
16.Discussion on Machining of Propeller Shaft for 230 000 DWT Ore Carrier230000DWT矿砂船螺旋桨轴加工问题探讨
17.Reinforcing this layer by grunting mode is introduced.介绍采用注浆方式来加固砂卵（砾）石层。
18.THE SANDY CONGLOMERATIC HEAVY OIL RESERVOIR IN BLOCK-2O OF CAOQIAO OIL FIELD AND ITS THERMAL PRODUCTION CHARACTERISTICS草20块砂砾岩稠油储层及热采特征
相关短句/例句
dredge[英][dred?][美][dr?d?]采砂船
1.Application of small-sizeddredge to the stoping of old tailing of Laozuoshan Gold Mine;小型采砂船在老柞山金矿老尾矿回采生产中的应用
2.The hydraulic system is a guarantee for the various functions of adredge.采砂船液压系统是采砂船各项功能顺利实现的保证。
3)multi bucket dredger多斗采砂船
4)Chain bucket dredge链斗式采砂船
5)Cutter suction dredge铰吸式采砂船
6)catamaran[英][,k?t?m?"r?n][美]["k?t?m?"r?n]双体船
1.Research on resistance of newcatamaran and trimaran;新型双体船和三体船阻力性能研究
2.Research on numerical prediction method for wavemaking resistance ofcatamaran/trimaran;双体船/三体船兴波阻力数值预报方法研究
3.Experimental and theoretical researches on the rolling motion of thecatamaran in gust;双体船在突风中摇摆运动的试验研究和理论计算
延伸阅读
采砂船采区解冻采砂船采区解冻thawing of dredging areaeo一shoehuon eolqu{ledong采砂船采区解冻(thawing of dredging area)对季节性冻结的砂矿层融解的L程。解冻方法主要有自然解冻法、分层自然解冻法和水针一解冻法;此外，还有渗流一排水解冻法、人工降雨一排水解冻法、爆破解冻法后三种解冻法均因解冻效果差，生产实际中很少使用。自然解冻法在一年中的温暖季节(气温在零度以上).利用太阳的辐射能融化冻土层。采用该法时，必须事先清除地表的植物层和剥离表土。一年的解冻深度可达Zm左右。采用该法解冻速度虽慢，但简单而经济，中国东北地区开采砂金矿中应用较普遍分层自然解冻法利用太阳的辐射能融化冻结上层，每当融化表面一薄层(5一1又m)后，应及时用推土机或铲运机铲除已融化的表面薄层，以使太阳辐射热和热空气继续作用于露出的冻层表面，加速融解速度。一年内融解的总厚度可达8一10m或更大。该法在砂矿开采的剥离工程中广泛应用。水针解冻法首先在解冻区内按一定网度将一种称为水针的细钢管插人冻土层内，然后用水泵将自然温度(水温高于ZC)的水压人水针，水通过水针上孔向冻土渗流和传递热量，使冻土逐渐解冻。水的压力应能克服管道和冻土孔隙的阻力。开始融化只能是围绕水针很窄的条带，继而逐渐扩大，直到连成一片时拔出水针。水针解冻的效率与水温成正比。水针的作用时间，取决于水温、水针间距、水针插人深度、水钊一流量、土岩含冰量、渗透系数、冻土的初始温度等。该方法的主要优点是解冻费用低、设备简单维修量少，能在短期内融解较深的冻土。其主要缺点是水针插人I_作劳动强度大，特别是在含有巨砾的矿砂中很困难;_工作的季节性强，即水的昼夜平均温度超过1〔时才能开始解冻工作。水针解冻法在开采永久性冻结砂矿中，得到较)一泛应用
