这段视频显示出多个负极梯级先导。
外部梯级应涂以防滑涂料。
Outside ladder rungs shall be painted with non-skid type paint.
这次闪电是一个负极梯级先导，它是从一架飞机上拍下的。
This lightning, a negative stepped leader, was filmed from an airplane.
二滩水电站是雅砻江梯级开发的第一个水电站。
Ertan hydropower station is the first power station built on Yalong River.
请小心梯级！
中国东部重力梯级带上的强震震中分布有着明显的分段性。
The gravity gradient belt studied in this paper is very distinct in Eastern China continent.
并对梯级开发方案中最大的在建电站——双河口水电站进行了较详细的介绍。
And a detailed description has been given to the biggest plant under construction, Shuanghekou plant.
并对梯级开发方案中最大的在建电站——双河口水电站进行了较详细的介绍。
And a detailed description has been given to the biggest plant under construction, Shuanghekou plant.
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