For the medium sand system of the low ammonia nitrogen, by shortening HLC, the removal effect of the system is significantly improved.
对中砂的中低氨氮进水系统，通过缩短水力负荷周期，会使去除效果得到明显改善。
Differs with other researches, the article put forwards the explore study of seaport from the view of maintain the stability of channel-sand system.
同以往单一研究水道或沙洲不同，文章提出从维持水道-沙洲系统稳定性的角度进行区域海港开发前景研究。
Properties of the green sand and the surface quality of the casting may be decreased due to the resin sand of cold box cores entering the green sand system.
冷芯盒树脂砂进入湿型砂系统会使湿型砂性能和铸件表面质量下降。
The active and dead bentonite contents in green sand system have great effect on the sand properties, but it is very difficult to measure them in actual shop.
型砂系统中的有效膨润土和失效膨润土含量对其性能有很大影响，而生产中对这两个参数的检测比较困难。
Kinetics of hydrothermal reaction in lime-sand system was investigated by means of quantitative phase analysis, SEM observation, and compressive strength measurement.
本文采用定量相分析法测定灰砂系统水热反应的水化物，并通过SEM观察及试块强度测定等研究了灰砂系统水热反应动力学。
There is a huge tidal sand system which is composed of the old sand body distributing in the coastal plain and the radial sand ridge distributing in south Huanghai Sea.
苏北陆区古潮成沙体和海域辐射沙洲共同构成了统一的苏北南黄海潮成沙洲体系。
This research mainly explores the production of steel castings with air flush molding green sand and the improvement of its character from the molding sand recipe and mold sand system control.
本研究主要探讨了用气冲造型湿型砂来生产铁路钩缓铸钢件，从型砂的配方和型砂系统的控制等几个方面来优化其性能。
SYDNEY: An ancient river system buried 35 metres below the sand dunes Simpson Desert in Central Australia has been revealed by a team of Australian and American researchers.
悉尼：一个美国和澳大利亚的联合研究小组，在澳大利亚辛普森沙漠的沙丘下35米，发现了一条古老的河道网。
Ventilation ductwork can be flexibly installed on both sides of the device, perfect ventilation and dust collection system will ensure the active ingredients of sand in the minimal loss.
冷却床引风管路可灵活地安装于设备的两侧，完善的通风除尘系统保证型砂中的有效成分损失最小。
The sand control of oil well pump is very important for drilling-production system.
抽油泵防砂是钻采系统防砂的一个重要环节。
Channel deposits consisting of sand silt and clay fill the valleys cut by a river system.
河道沉积由砂，粉沙和粘土组成，充填于河流切割的河谷之中。
HeLuanShi system in engineering field, pressure-blasting machine is mechanism sand, cushion material, asphalt concrete and cement concrete aggregate ideal production equipment.
在工程领域，河卵石制砂机是机制砂、垫层料、沥青混凝土和水泥混凝土骨料的理想生产设备。
In many large farms, the sand is "recycled" from the free stall, into the gutter or alley, carried by water to a recovery system, and then reapplied to the free stall.
在许多大型养殖场中，沙子都是从散栏畜舍中“循环利用”进入排水沟或巷道，跟污水一起被运送到回收系统，然后重新用到散栏畜舍。
Also used for mechanism artificially system sand, highway, railway, water conservancy, airports, architecture, cement, refractories, metallurgy industries production quality stone.
同时也是用于机制人工制砂、高等级公路、铁路、水利、机场、建筑、水泥、耐材、治金等行业生产优质石料。
This paper introduces the design of microcomputer burdening system on molding sand based on the MCS-51 microprocessor.
介绍了以MCS-51 系列单片机为微处理器的微机控制混砂系统的设计原理。
The system can test active clay content and moisture of green sand fast and control its composition directly.
该系统能快速测定型砂的有效粘土含量和含水量，实现型砂质量的直接控制。
According to outcrop research, drilling core analysis, and sand distributed system drawing, we analyzed the lower member of Zhiluo Formation, northeastern Ordos basin.
作者通过露头调查、钻孔岩心分析和砂分散体系制图，对鄂尔多斯盆地东北部直罗组下段进行了成因分析。
Putting the fuzzy mathematics theory into quality evaluation system of sand mold, we provide a quantitative and practical process for check and analysis of quality of sand mold.
将模糊数学理论引入铸造型砂品质评价体系中，为型砂品质的量化分析和考核，提供了一种切实可行的方法。
The necessity of tank cathodic protection is detailed and impact of tar sand and electric insulation on cathodic protection system is highlighted.
阐述了储罐阴极保护的必要性，并重点探讨了沥青砂层及电绝缘对阴极保护系统影响的问题。
A sand control technology decision expert system based on expert knowledge and field experience is developed. It has functions of sand prediction, selecting solution, and optimizing parameters.
以专家知识和现场经验为基础开发的防砂工艺决策专家系统，具有防砂预测、方案优选、施工参数优化等功能。
The engineering sand prevention system along the highway of crossing Kubuqi desert was damaged seriously.
库布齐沙漠穿沙公路两侧现有工程防沙体系破损情况日趋严重。
In the region, the evolution processes of slope gully system results from alternative actions of sand deposition and water erosion.
该区坡沟系统的形成发育是风沙沉积、风蚀与水蚀交替作用的结果。
Effect of particle size distribution has many reasons, including the structure of asphalt tile production line for sand, sand supply system and falling sand structure.
影响粒径散布的缘由有很多，包括彩砂的供货、沥青瓦消费线供砂系统的构造和落砂器的构造。
Through calculation, analysis and formula deduction of relevant process data for reclaimed sand, the problems are founded in reclaimed system based on it.
对公司再生砂相关工艺参数进行了计算分析与公式推导，在此基础上找出目前再生系统存在的问题。
A sand moisture automatic control system for foundry is introduced.
介绍了一种用于铸造车间的型砂水分自动控制系统。
In renovation of the foundry shop, the original used sand suction system was dismantled, which caused lower quality of the molding sand.
在车间改造中，去掉了原有的旧砂吸送系统，而导致型砂质量下降。
In renovation of the foundry shop, the original used sand suction system was dismantled, which caused lower quality of the molding sand.
在车间改造中，去掉了原有的旧砂吸送系统，而导致型砂质量下降。
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