助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   rapid sand 的翻译结果: 查询用时:0.008秒
图标索引 在分类学科中查询
所有学科
金属学及金属工艺
更多类别查询

图标索引 历史查询
 

rapid sand
相关语句
  快速砂型
     The New Development of the Mold Material for Rapid Sand Casting
     快速砂型铸造用模具材料的新进展
短句来源
     Mold material of rapid sand casting is one of important factor for realizing rapid sand casting.
     快速砂型铸造用模具材料,是实现快速砂型铸造的重要因素。
短句来源
     The current mold material of rapid sand casting used in actual situation are analyzed and compared in this paper. For the rapid casting, the new mold material and their surface treatment technique suited for rapid casting is the development direction of sand casting mold material.
     分析和比较了当前快速砂型铸造用模具材料的现状,并指出研究适合快速砂型铸造用模具材料和进行表面处理为今后的发展方向。
短句来源
  “rapid sand”译为未确定词的双语例句
     Research on rapid sand cast of complex archetypal hull based on SL
     基于SL模型的复杂壳体快速铸造的研究
短句来源
     STUDY ON THE STRAINING ACTION OF THE SAND BED OF RAPID SAND FILTERS IN REMOVAL OF SUSPENDED MATERIAL FROM WATER
     快滤池滤层对水中悬游物去除作用的研究
短句来源
     BACKWASHING THEORY AND CONTRALLING ON THE PRACTICAL BACKWASHING FLOW RATE IN THE RAPID SAND FILTERS
     滤池反冲洗理论和实际反冲洗强度的控制
短句来源
     OPTIMUM RATE OF SAND EXPANSION IN THE RAPID SAND FILTER DURING BACK -WASHING
     滤池冲洗最佳膨胀率的探讨
短句来源
     Research on Optimization of Operating Parameters for Rapid Sand Filter with Air-water Backwashing
     快滤池气水反冲洗最佳运行参数研究
短句来源
更多       
  相似匹配句对
     On Sand
     论砂
短句来源
     sandrapid characterization of the chip.
     ③材料芯片的快速表征。
短句来源
     Reformation of the Backwashing System of Rapid Sand Filter
     普通快滤池反冲洗系统的改造
短句来源
     Sand and Foam
     沙子和泡沫
短句来源
     It is rapid, simple.
     本法出结果快、操作简便。
短句来源
查询“rapid sand”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  rapid sand
Additional hindrances to upstream migration were found at rapids and the area of the fish ladder, located further upstream in the regulated river section.
      
Similar segregation of FR was observed in F2 populations for both Grand Rapids and Iceberg.
      
The responses of Grand Rapids and Iceberg were similar in many respects.
      
Comparative genetic analysis of field resistance to downy mildew in the lettuce cultivars 'Grand Rapids' and 'Iceberg'
      
F1(Regina-71 × Grand Rapids) and F2 seed were obtained, and inoculated along with the parental cultivars with different races of M.
      
更多          


The main function of coagulation is to promote the sedimentation efficiency so as to prolong the washing cycle of rapid sand filter and in the meantime the turbidity of raw water is greatly reduced. Sizes of suspended particles which form turbidity cover a wide range and their properties are diverse too. The treatment efficiencies of processes about the removal of different suspended particles are different. In the study of treatment processes of turbidity removal of raw water, it may be better to classify...

The main function of coagulation is to promote the sedimentation efficiency so as to prolong the washing cycle of rapid sand filter and in the meantime the turbidity of raw water is greatly reduced. Sizes of suspended particles which form turbidity cover a wide range and their properties are diverse too. The treatment efficiencies of processes about the removal of different suspended particles are different. In the study of treatment processes of turbidity removal of raw water, it may be better to classify the turbidity into different classes. It is suggested that the turbidity of raw water may be classified into settleable turbidity, coagulatod-settleable turbidity, unfilterable turbidity and coagulable turbidity. And a draft of their determination methods is proposed for further studies.

混凝的主要作用是提高沉淀效率,借以延长滤池洗砂周期;同时,在降低浑浊度上起了作用.致浊粒子的粗细范围很广,且性质不同.所用处理方法去除不同致浊粒子的效果不同,浑浊度宜分类测定.建议分为自混浊度、混凝浊度、可滤浊度、聚沉浊度,并提出了测定方法草案,供进一步研究.

The design and operation of an advanced drinking water purification plant at Qianguo Oil Refinery,Songyuan City,Jilin Province to serve its residential and production areas were described in this paper.The plant employs ozonation biological activated carbon technique to treat the filtrate from a conventional drinking water treatment plant being possessed of coagulation,flocculation,sedimentation and rapid sand filtration devices.The performance of the advanced water purification plant is very good,and...

The design and operation of an advanced drinking water purification plant at Qianguo Oil Refinery,Songyuan City,Jilin Province to serve its residential and production areas were described in this paper.The plant employs ozonation biological activated carbon technique to treat the filtrate from a conventional drinking water treatment plant being possessed of coagulation,flocculation,sedimentation and rapid sand filtration devices.The performance of the advanced water purification plant is very good,and the final output water meets the Chinese National Standard for drinking water quality.The GC/MS analytical results show that the final output water has only 5 organic micro pollutants without priority and potential hazardous ones,as compared to the filtrate from the conventional treatment plant with 115 organic micro pollutants,including 5 priority and 23 potential hazardous ones.

吉林省前郭炼油厂生产区及其居民区的优质饮用水净化水厂采用臭氧化生物活性炭工艺处理传统水处理厂的滤后水。传统水处理厂由混凝、絮凝、沉淀和快速过滤组成。该饮用水深度净化厂运行性能稳定,最后出水完全达到国家饮用水水质标准。GC/MS分析结果表明,最后出水中含有5种微量有机污染物,不含重点及潜在的有害的微量有机污染物,而传统水处理厂的滤后水含有115种微量有机污染物,5种重点有害污染物和23种潜在的有害有机污染物

Experimental research on pretreatment of polluted raw water with higher turbidity and higher ammonia-N concentration by biological contact oxidation process (BCOP) with elastic packing was conducted and compared with conventional water treatment process. Experimental results showed that removal rates of ammonia-N, COD Mn , and UV 254 were 60%~80%, 0.5%~25%, and 1%~15% respectively at raw water turbidity of 50~200 NTU, ammonia-N concentration of 1~10 mg/L and temperature of 18~30 ℃. During the...

Experimental research on pretreatment of polluted raw water with higher turbidity and higher ammonia-N concentration by biological contact oxidation process (BCOP) with elastic packing was conducted and compared with conventional water treatment process. Experimental results showed that removal rates of ammonia-N, COD Mn , and UV 254 were 60%~80%, 0.5%~25%, and 1%~15% respectively at raw water turbidity of 50~200 NTU, ammonia-N concentration of 1~10 mg/L and temperature of 18~30 ℃. During the test, higher turbidity (from 200 NTU to 800 NTU) of raw water had no significant effect on removal efficiency of ammonia-N and COD Mn . Nitrite removal rate was 20%~50%, but nitrite accumulation took place when ammonia-N concentration was rather high. With the BCOP, pollutants removal effects of subsequent sedimentation tank and rapid sand filter could be improved.

采用生物接触氧化技术预处理微污染原水 ,并和水厂常规处理工艺进行了对比。中试结果表明 ,原水浊度为 50~ 2 0 0NTU、氨氮浓度为 1~ 10mg/L、水温为 18~ 30℃时 ,生化池对氨氮的去除率为 6 0 %~ 80 % ,CODMn去除率为 0 .5%~ 2 5% ,UV2 54 的去除率为 1%~ 15% ;正常运行时 ,较高浊度 (2 0 0~ 80 0NTU)的冲击不会明显影响生化池对氨氮和CODMn的去除 ;生化池的亚硝酸盐氮去除率为 2 0 %~ 50 % ,在原水氨氮浓度较高时亚硝酸盐氮积累增多 ;增加生物接触氧化预处理工艺 ,显著提高了后续混凝沉淀池和砂滤池的除污染效果

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关rapid sand的内容
在知识搜索中查有关rapid sand的内容
在数字搜索中查有关rapid sand的内容
在概念知识元中查有关rapid sand的内容
在学术趋势中查有关rapid sand的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社