火力发电厂及变电所中悬垂绝缘子串片数的选择是电气设计中必须的步骤和容易产生混乱的难点，因此本文对此进行了研究。
Test and research result shows that the retrofit of backward V insulators can be carried out for 500 kV suspension insulator string, and when it is .
最初它们是圆圆的金属片，中间有一个洞，这样一根绳子就可以把它们串在一起。
Originally they were round pieces of metal with a hole in the center, so that a piece of string could keep them together.
她作呕地转开视线，他却把扔过来一串烤肉，正好砸中她的大腿，然后落在大街上，那串半熟的烤肉在她腿上留下一片油和血混合的污渍。
It struck her on the leg and tumbled to the street, and the half-cooked meat left a smear of grease and blood down her thigh.
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