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
   extra low resistance 在 地球物理学 分类中 的翻译结果: 查询用时:0.056秒
图标索引 在分类学科中查询
所有学科
地球物理学
水利水电工程
更多类别查询

图标索引 历史查询
 

extra low resistance
相关语句
  超低阻力
    In this paper, the channel resistance and its hydraulic characteristics, the main units of synthetic resistance, the hydraulic and kinematic characteristics of bed materials in the Lower Yellow River are analysed. It also expounds that the formation of extra low resistance is related to fine and non-uniform bed material, higher suspended sediment concentration and its nonuniform distribution, which cause the velocity distribution non-unifrom and the Karmsn coefficient smaller.
    本文分析了黄河下游河道阻力与水力特性、综合阻力主要组成单元、床沙组成的水力特性和运动特点,阐明了超低阻力的产生与床沙细、不均匀、含沙量较大、分布不均匀,使流速分布不均匀、卡门参数变小有关,是构成“大水出好河”、“多来多排”和远距离输沙的主要动力;
短句来源
  超低阻力
    In this paper, the channel resistance and its hydraulic characteristics, the main units of synthetic resistance, the hydraulic and kinematic characteristics of bed materials in the Lower Yellow River are analysed. It also expounds that the formation of extra low resistance is related to fine and non-uniform bed material, higher suspended sediment concentration and its nonuniform distribution, which cause the velocity distribution non-unifrom and the Karmsn coefficient smaller.
    本文分析了黄河下游河道阻力与水力特性、综合阻力主要组成单元、床沙组成的水力特性和运动特点,阐明了超低阻力的产生与床沙细、不均匀、含沙量较大、分布不均匀,使流速分布不均匀、卡门参数变小有关,是构成“大水出好河”、“多来多排”和远距离输沙的主要动力;
短句来源
查询“extra low resistance”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
没有找到相关例句


In this paper, the channel resistance and its hydraulic characteristics, the main units of synthetic resistance, the hydraulic and kinematic characteristics of bed materials in the Lower Yellow River are analysed. It also expounds that the formation of extra low resistance is related to fine and non-uniform bed material, higher suspended sediment concentration and its nonuniform distribution, which cause the velocity distribution non-unifrom and the Karmsn coefficient smaller. The extra low resistance...

In this paper, the channel resistance and its hydraulic characteristics, the main units of synthetic resistance, the hydraulic and kinematic characteristics of bed materials in the Lower Yellow River are analysed. It also expounds that the formation of extra low resistance is related to fine and non-uniform bed material, higher suspended sediment concentration and its nonuniform distribution, which cause the velocity distribution non-unifrom and the Karmsn coefficient smaller. The extra low resistance would lead to the channel narrowed and deepened in high water period, and cause more incoming sediment, more sediment carried and sediment transported over a long distance. Otherwise, the extra high resistance is caused by large scale waves, which make the channel silted, widened and shallowed in low water period. The channel resistance could be calculated by eq. (4) and eq. (5) when the bed material is find and the sediment concentration S is smaller than 200 kg/m ̄3, and the result is in good agreement with field data. It should be pointed out that using the extra low resistance and dispelling the extra high resistance are the main measures to eliminate the channel aggradation in the Lower Yellow River and its irrigation canals.

本文分析了黄河下游河道阻力与水力特性、综合阻力主要组成单元、床沙组成的水力特性和运动特点,阐明了超低阻力的产生与床沙细、不均匀、含沙量较大、分布不均匀,使流速分布不均匀、卡门参数变小有关,是构成“大水出好河”、“多来多排”和远距离输沙的主要动力;超高阻力是大面积的沙被阻力所为,是造成“小水淤坏河”,河床不断淤高的重要原因.S<200kg/m ̄3时,细沙河床阻力用公式(4)和(5)联解,可获得良好的结果.最后指出开发超低阻力输沙技术。消除和避免渠、槽超高阻力的出现是根除黄河河床不断淤高,引黄渠道淤塞、沙化和发展远距离输沙的主攻方向.

 
图标索引 相关查询

 


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