16平方铜电线价格一般是多少钱 16平方铜电线价格一般是多少钱
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\u8ba1\u7b97\u65b9\u6cd5\u5982\u4e0b\uff1a
\u7535\u7ebf\u622a\u9762\u4e00\u822c\u90fd\u662f\u5706\u3002
\u5706\u7684\u9762\u79ef=\u03c0r²=0.25\u03c0d²\uff08\u03c0\u662f\u5706\u5468\u7387\uff0cr\u662f\u5706\u7684\u534a\u5f84\uff0cd\u662f\u5706\u7684\u76f4\u5f84\uff09
16=0.25\u00d73.14\u00d7d²
d²=16\u00f70.25\u00f73.14
d=\u221a\uff0816\u00f70.25\u00f73.14\uff09=4.51466\uff08\u6beb\u7c73\uff09
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\u5728\u4e00\u4e2a\u5e73\u9762\u5185\uff0c\u4e00\u52a8\u70b9\u4ee5\u4e00\u5b9a\u70b9\u4e3a\u4e2d\u5fc3\uff0c\u4ee5\u4e00\u5b9a\u957f\u5ea6\u4e3a\u8ddd\u79bb\u65cb\u8f6c\u4e00\u5468\u6240\u5f62\u6210\u7684\u5c01\u95ed\u66f2\u7ebf\u53eb\u505a\u5706\u3002\u5706\u6709\u65e0\u6570\u6761\u5bf9\u79f0\u8f74\u3002
\u5728\u540c\u4e00\u5e73\u9762\u5185\uff0c\u5230\u5b9a\u70b9\u7684\u8ddd\u79bb\u7b49\u4e8e\u5b9a\u957f\u7684\u70b9\u7684\u96c6\u5408\u53eb\u505a\u5706\u3002\u5706\u53ef\u4ee5\u8868\u793a\u4e3a\u96c6\u5408{M||MO|=r},\u5706\u7684\u6807\u51c6\u65b9\u7a0b\u662f(x - a) ² + (y - b) ² = r ²\u3002\u5176\u4e2d\uff0cO\u662f\u5706\u5fc3\uff0cr \u662f\u534a\u5f84\u3002
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\u5706\u5468\u957f\uff08c\uff09\uff1a\u5706\u7684\u76f4\u5f84\uff08D\uff09\uff0c\u90a3\u5706\u7684\u5468\u957f\uff08c\uff09\u9664\u4ee5\u5706\u7684\u76f4\u5f84\uff08D\uff09\u7b49\u4e8e\u03c0\uff0c\u90a3\u5229\u7528\u4e58\u6cd5\u7684\u610f\u4e49\uff0c\u5c31\u7b49\u4e8e \u03c0\u4e58\u5706\u7684\u76f4\u5f84\uff08D\uff09\u7b49\u4e8e\u5706\u7684\u5468\u957f\uff08C\uff09\uff0cC=\u03c0d\u3002\u800c\u540c\u5706\u7684\u76f4\u5f84\uff08D\uff09\u662f\u5706\u7684\u534a\u5f84\uff08r\uff09\u7684\u4e24\u500d\uff0c\u6240\u4ee5\u5c31\u5706\u7684\u5468\u957f\uff08c\uff09\u7b49\u4e8e2\u4e58\u4ee5\u03c0\u4e58\u4ee5\u5706\u7684\u534a\u5f84\uff08r\uff09\uff0cC=2\u03c0r\u3002
\u628a\u5706\u5e73\u5747\u5206\u6210\u82e5\u5e72\u4efd\uff0c\u53ef\u4ee5\u62fc\u6210\u4e00\u4e2a\u8fd1\u4f3c\u7684\u957f\u65b9\u5f62\u3002\u957f\u65b9\u5f62\u7684\u5bbd\u5c31\u7b49\u4e8e\u5706\u7684\u534a\u5f84\uff08r\uff09\uff0c\u957f\u65b9\u5f62\u7684\u957f\u5c31\u662f\u5706\u5468\u957f\uff08C\uff09\u7684\u4e00\u534a\u3002\u957f\u65b9\u5f62\u7684\u9762\u79ef\u662fab\uff0c\u90a3\u5706\u7684\u9762\u79ef\u5c31\u662f\uff1a\u5706\u7684\u534a\u5f84\uff08r\uff09\u7684\u5e73\u65b9\u4e58\u4ee5\u03c0\uff0cS=\u03c0r²=0.25\u03c0d²
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u5706
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BV 16平方 铜芯电线 1300元/100米你这个16平方的得看是什么电线啊！要是大电缆的话，肯定会比一般的铜芯线贵一些。
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