A new method for calculating displacement of riprap in river harness;
抛石位移计算的一种新方法
Calculation of Drift Distance for Hydrodynamic riprap;
动水抛石漂移距离的计算
Several problems of scour protection by riprap bank;
抛石护岸防冲的几个问题
After studying the characteristics of drifting, classification, erosion resisting of rock riprap by combining flume experiment and field measurement, this paper presents a better way of rock riprap and a type of protecting the riverbed which can not only improve the stabilization of the seawall, but also save the investments of the project.
利用水槽试验结合工程现场观测对不同条件下单颗粒及混合石料的漂移、分选、抗冲等情况进行了对比 ,提出了较好的抛投方法及既有利于海塘稳定又节约投资的护底形式 ,取得了巨大的社会效益和经济效益 ;同时导得动水中单颗粒抛石落距的计算公式及船抛石料床面分布面积与船体开口面积、石料中值粒径、水流佛汝德数等之间的经验关系 ,可供进一步深入的理论研究和工程施工参考运用。
The riprap mound layer of sea reclamation consists of block stones with the looseness of structure,big pore and influenced by the fluctuation of ocean tidal,which results in the collapse of driven cast-in-place pile of impact pore-forming.
填海抛石棱体层由块石组成,结构松散,孔隙较大,且受海潮涨落影响,在该地区进行灌注桩的冲击成孔,很容易塌孔。
Adopting the construction scheme which combines iron-frame moulded board with unsegragating concrete underwater and encircling steel hoop on glass fiber reinforced plastic mortar pipes,the difficulty in construction of outfall in riprap mound within a short period period is overcome.
通过采用钢框模板结合水下不离析混凝土以及对玻璃钢夹砂排水管采用抱箍的施工方案,成功解决了在较短工期内完成抛石棱体中出水口施工难度大的问题。
We skipped stones over the water.
我们玩抛石跳掠水面的游戏。
The Stability Analysis of Rubble Mound Breakwater by Distinct Element Method;
抛石防波堤稳定性的离散单元法分析
a game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball.
一种游戏，把一些抛石抛出，在指关节上反弹后，再有选择的抓到手中。
discharging their freight of mould and gravel.
他们抛泥土和石子。
diamond die polishing machine
金刚石拉丝模抛光机
He skimmed a flat stone over the water.
他抛出一块扁平石头使之掠过水面。
Polished monocrystalline sapphire substrates
GB/T13843-1992蓝宝石单晶抛光衬底片
The hurricane flung their motor boat upon the rocks.
飓风把他们的摩托艇抛到岩石上。
The storm cast the little rowboat on the rocks.
风暴把这条小划艇抛到岩石上。
A volcano erupted and propelled rocks high into the sky.
火山爆发, 把无数的石块抛向天空。
The gossip tossed the mossy blossom fossil.
爱讲闲话者向上抛长满苔藓的花化石.
Voice : One hundred trillion tons of dirt and rock hurled into the atmosphere.
话外音：一百兆吨的尘石被抛入大气层。
Study on Short Wavelength Laser Polishing of Sapphire;
短波长激光抛光蓝宝石工艺过程研究
Fundamental Study on High-efficiency Polishing for CVD Diamond Thick Film;
CVD金刚石厚膜高效抛光的基础研究
Study on Tribochemical Polishing Technique of CVD Diamond Film;
CVD金刚石膜摩擦化学抛光技术研究
Study on CMP Slurry of CVD Diamond Film;
CVD金刚石膜化学机械抛光液的研制
Development of Wheel for CVD Diamond Thermo-Chemical Polishing
CVD金刚石膜热化学抛光盘的研制
The Influence of Polishing Quality to Etching Morphology for Quartz Glasses
石英玻璃抛光质量对腐蚀形貌的影响
