These sea gulls used to find food in the Bohai Bay sea area off Dalian city which was covered by heavy ice because of the cold weather.
这些海鸥过去是在大连市渤海湾海域觅食。因为最近低温天气,海面覆盖厚厚的冰层,所以它们才转移觅食地。
Because of influence of landform and climate in heavy icing area, OPGW will to happen ice injury accident easy, it is very important to choose rational OPGW structure pattern.
由于重冰区地形、气候等的影响,OPGW容易发生冰害事故,选择合理的OPGW结构型式非常重要。
应用推荐