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桥式起重机主梁为什么要保持一定的上拱度形状？
[ 2011-7-4 21:17:00 | By:
杨远锋
]
桥式起重机的两个主梁都制成均匀向上拱起的形状，称上拱度。桥式起重机制成一定上拱度的形状，是防止起重机在吊物时，主梁产生下挠；尽量减少小车在吊物运行中产生的附加阻力或自行滑动。此外，具有一定的上拱度，当起重机吊起负荷时，能使大车运行机构处于较有利的工作状态。
上拱度的拱值规定为跨度的1／1000。
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原创
[
2016-9-6 17:11:51
| By:
原创(游客)
]
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原创
[
2016-9-28 16:47:38
| By:
原创(游客)
]
http://seogsywj.lofter.com/post/1e634756_c6df4f7 http://wztgywj.lofter.com/post/1e65f473_c6ee9ad http://wztgywj.lofter.com/post/1e65f473_c6f0b7e http://bjseoywj.lofter.com/post/1e66bf3e_c70fc61 http://seogsywj.lofter.com/post/1e634756_c6ded63 http://bjseoywj.lofter.com/post/1e66bf3e_c70fbf2 http://wztgywj.lofter.com/post/1e65f473_c6eea9d http://ywjseo.lofter.com/post/1e634752_c65004e http://seogsywj.lofter.com/post/1e634756_c6ddacd http://wztgywj.lofter.com/post/1e65f473_c6f0b9a
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原创
[
2016-9-30 11:24:12
| By:
原创(游客)
]
http://rywkdks.lofter.com/post/1e698063_c7f6a2a http://rywydx.lofter.com/post/1e6a68e3_c80f6fe http://rywkdks.lofter.com/post/1e698063_c7f46f9 http://rywkdks.lofter.com/post/1e698063_c7f859d http://rywkdks.lofter.com/post/1e698063_c7f50bd http://rywkdks.lofter.com/post/1e698063_c7f7bcf http://rywydx.lofter.com/post/1e6a68e3_c80cf4d http://rywywj.lofter.com/post/1e6a80c3_c823b6f http://rywywj.lofter.com/post/1e6a80c3_c8245e8 http://rywydx.lofter.com/post/1e6a68e3_c80cf4c
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Re:在漫画中识别身边的违章
[
2016-10-9 14:37:57
| By:
xbfjn(游客)
]
http://www.metacafe.com/videos_about/%E5%B8%9D%E4%B8%80%E5%A8%B1%E4%B9%90%E6%98%AF%E9%AA%97%E4%BA%BA%E7%9A%84%E5%90%97-952499Q-%E7%99%BE%E5%BA%A6%E4%BF%A1%E8%AA%89lotv/
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Re:在漫画中识别身边的违章
[
2016-10-15 20:26:29
| By:
wagjl(游客)
]
http://www.esafety.cn/blog/u/3012/archives/2012/121258.html
http://qqgame.gamebbs.qq.com/forum.php?mod=viewthread&tid=59464411
http://www.esafety.cn/blog/u/3012/archives/2012/126205.html
http://www.esafety.cn/blog/wll/66374/archives/2010/102848.html
http://www.esafety.cn/blog/u/3012/archives/2010/104050.html
http://www.jxedt.com/wen/qita/3170829006576943132.html
http://www.jxedt.com/wen/kaoshi/3170829006576943132.html
http://www.esafety.cn/blog/wll/73171/archives/2011/111806.html
http://bbs.tga.plu.cn/thread-3517195-1-1.html
http://www.esafety.cn/blog/wll/34024/archives/2013/127370.html
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Re:在漫画中识别身边的违章
[
2016-10-16 1:54:24
| By:
vtlnq(游客)
]
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Re:在漫画中识别身边的违章
[
2016-10-17 3:03:37
| By:
qvyeh(游客)
]
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Re:在漫画中识别身边的违章
[
2016-10-20 18:02:47
| By:
ecuwa(游客)
]
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Re:在漫画中识别身边的违章
[
2016-10-22 2:26:50
| By:
puwae(游客)
]
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Re:在漫画中识别身边的违章
[
2016-10-22 19:17:31
| By:
wgptw(游客)
]
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Re:在漫画中识别身边的违章
[
2016-10-22 22:46:29
| By:
bfkps(游客)
]
http://www.anqiu123.com/store-1787/document-id-480119.html
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Re:在漫画中识别身边的违章
[
2016-10-23 4:16:37
| By:
okdfh(游客)
]
http://www.esafety.cn/blog/wll/85686/archives/2011/106200.html
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Re:在漫画中识别身边的违章
[
2017-2-19 23:55:21
| By:
wbgim(游客)
]
http://wen.28.com/article/92177
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Re:在漫画中识别身边的违章
[
2017-2-20 15:57:44
| By:
gkosw(游客)
]
http://wen.28.com/article/22541
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Re:在漫画中识别身边的违章
[
2017-3-2 22:46:26
| By:
dneil(游客)
]
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