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- Now the commonly used starting elements are insensitivity to the slow expansibility faults,and high earth resistance faults are easily affected by power system swing. 现有微机保护装置的启动元件存在着高阻接地和缓慢发展性故障情况下灵敏度不足的缺点,振荡情况下可能产生误启动,并且不能识别振荡中再发生故障的情况。
- high earth resistivity 高电阻率降阻
- Comprehensive Control on Grounding at Regions with non Uniformly Distributed High Earth Resistance Rate 分布不均匀的高土壤电阻率地区接地的综合治理
- Abstract The Gauss pseudospectral method was used to solve the coplanar aeroassisted orbit transfer from high earth orbit to low earth orbit (HEO-LEO). 摘要 将高斯伪谱法用于共面高轨道到低轨道航天器气动辅助轨道转移的研究。
- A strong earthquake of M7.6 struck Lancang, Yunnan Province on November 6, 1988, and abnormal earth resistivity changes were detected in the geoclectrie observation networks in Yunnan Province. 1988年11月6日我国云南澜沧发生7.;6级强烈地震;震前云南地电台网出现了地电阻率的异常变化。
- The wetting deformation of coarse-grained material is a key problem in design of high earth rockfill dam, but it is not solved well so far. 土石坝粗粒料浸水湿化变形,是目前高土石坝设计理论中的关键问题之一,但没有很好解决。
- In the high resistivity area, it is very difficult to reduce the earthing resistance to the given value. 在高电阻率地域,将接地电阻降到设计值非常困难。
- On the aspect of observation time, it has limited efficiency for low earth orbit target space-based observation, and good efficiency for high earth orbit observation. 在可见时间方面，天基空间目标光学监视系统对低轨目标的监视能力有限，而对高轨目标具有良好的监视性能。
- The results show that the main reasons of the earth resistivity's reduction is the combining effect of the diffusion of hot mineral water,the vadose of waste water around the station and rain. 结果表明测区附近热矿水的扩散、废污水的渗流和降雨等诸多因素的影响是昌黎台地电阻率多年趋势下降变化的主要原因。
- Werner System earth resistivity method 维纳土地电阻探测法
- A great deal of evidence has indicated that deep-thick bedded clay has engineering properties which are high earth pressure, non-frozen, distinct plastic deformation, great lateral resistance. 综合大量事实，本文指出表土深部的厚粘土层存在着地压高、不冻结、塑性变形显著、摩擦阻力大等工程特性。
- automatic earth resistivity method 自动地电阻率法
- the earth resistivity instrument 地电仪器
- observation data of earth resistivity 地电阻率观测数据
- Chromatography imaging of earth resistivity 电阻率层析成像
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- Men and birds are fain of climbing high. 不论人还是鸟都愿意往高处攀。
- This paper researches the failure surface modes of displaced soil mass in front of anchor plate by tests, meanwhile analyses the earth resistance. 利用试验观测锚碇板前置换土体破裂面形态,并对其抗力进行分析。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- In the end, by analyzing experimental results, this article generalizes common rules of earth resistance measurement based on multi-electrode method. 最后,文章经过对试验记录和试验结果的综合分析研究,归纳出多电极法测量接地电阻的普遍规律。
