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- A new approach to single phase to ground fault section location based on transient signals in a non-solidly earthed network is presented. 提出一种适用于配电系统架空线路的小电流接地故障区段定位新方法。
- This text has expounded a designer should consider utilize the basic earth network of the skyscraper as the earth device at first, If not, Should design the artificial earth device. 摘要:本文阐明了设计人员应首先考虑利用高层建筑基础接地网作为接地装置。当不能利用基础接地网作为接地装置时,应该设计人工接地装置。
- Distribution system are universally the non-solidly earthed networks, and the single-phase to earth fault happens most frequently in the power system with ungrounded neutral. 小电流接地系统是配电网普遍采用的接地方式,同时单相接地故障是小电流接地系统发生率最高的故障。
- Study on earthed network with rated frequency of Wujiangdu Hydropower Station 乌江渡发电厂工频接地网的研究
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- The landslide earthed up the pool where the animals usually drank. 滑坡填塞了动物通常来饮水的这个水坑。
- The attraction of the moon for the earth causes the tides. 月球对地球的吸引力造成潮汐。
- The earth is only a speck in the universe. 地球在宇宙中只不过是一个小点罢了。
- How on earth do they manage to rob the bank? 他们到底怎么抢了银行的?
- A number of satellites are now circling the earth. 一些人造卫星现在正环绕地球飞行。
- The machine cast up a big heap of earth. 机器卷起了一大堆泥土。
- The red sun lights up the sky and the earth. 红太阳照亮了天空和大地。
- Who on earth is that female he's with? 跟他在一起的那个女人究竟是谁?
- Antarctica is the loneliest place on earth. 南极是地球上最偏远的地区。
- He dived his hand into the earth. 他将手插入泥土中。
- Earth worms are often used as bait. 蚯蚓常用作鱼饵。
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
- Many kinds of animals have vanished from the earth. 许多动物已人地球上消失了。
- The heavy wheels churned the earth into mud. 笨重的车轮将大地碾成了泥浆。
- What percentage of the earth is covered by oceans? 地球上百分之多少被海水覆盖着?