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顶。千斤顶包括:螺旋千斤顶,爪式千斤顶、卧式千斤顶分,分离式千斤顶,油压千斤顶等。千斤顶有美国,日本,德国,美国千斤顶是恩派克千斤顶(enerpac千斤顶),日本千斤顶是马沙达千斤
http://blog.alighting.cn/qianjinding/archive/2010/3/15/36566.html2010/3/15 13:41:00
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http://blog.alighting.cn/qianjinding/archive/2010/3/23/38525.html2010/3/23 13:43:00
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http://blog.alighting.cn/qianjinding/archive/2010/3/26/38749.html2010/3/26 14:05:00
报道了芯片尺寸为500μm×500μm硅衬底gan基蓝光led在常温下经1000h加速老化后的电学和发光性能,其光功率随老化时间的变化分先升后降两个阶段;老化后的反向漏电流和正向
https://www.alighting.cn/resource/20111025/126967.htm2011/10/25 14:13:25
http://blog.alighting.cn/qianjinding/archive/2010/3/29/38976.html2010/3/29 14:02:00
