Mike Krzyzewski is really a famous coach of Dream Team. She has coached north america men's basketball team for some time, that's clinched numerous medals for his country. Following Londonfl jerseys supplyn Olympic was over, Krzyzewski told The Associated Press that this game will be his final one as national coach, a job he's held for seven years. He had left open the possibility of swomen nfl jerseystaying with the team beyond the London Games, when practice on Saturday said these will be his last Olympics.When asked if he was sure, Krzyzewski didn't hesitate before again saying, "yecheap nfl jerseys wholesales," this will be his last game "If we could win it, then it might be three major championships in a row, i always do not know when that has been done because we haven't usually won http://govoriotkrito.bg/libs/nflcn08.htmthe globe championships," Krzyzewski said. "It becomes an enormous thing for the program." Whatever, he's an awesome coach. His achievement are going to be remembered by the country.cheap nfl jerseys
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接觸器觸頭燒損如何處理

2014/7/28 9:31:35      點擊:
  接觸器觸頭在長時間使用或頻繁通斷電路時,會受到電弧的燒損。接觸器觸頭一般是表面鍍銀或銀合金制成,由電弧作用,觸頭表面形成一層黑色的氧化銀或硫化銀,但它們的導電性能仍然良好,無須清除或修理。在負載要求頻繁起動的線路中使用的接觸器,或其頻繁起動,起動電流沖擊也頻繁,觸頭的表面會被電弧燒毛,變得凹凸不平。如觸頭雖有變黑、燒毛情況,但凹凸不太嚴重,可不處理。但如果觸頭表面燒毛、凹凸過分嚴重,就會大大增加接觸電阻,這時應及時銼平。或用零號沙布磨平。40A以上接觸器除挫平外,還應調整三相觸頭的同步。
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