机械制图中r表示什么

embedheight="280"width="336"flashvars="bannerWidth=336bannerHeight=280bannerSID=http://img.uu1001.cn/x/2010-08-16/12-08/2010-08-16_0e7c7508c032c42a9e23e82b6d042de2_0.xmlbannerXML=bannerLink=http%3A%2F%2Fwww%2Ejjwxc%2Enet%2Fonebook%2Ephp%3Fnovelid%3D836325dataSource=bid=9767434appSource=default"wmode="transparent"allowscriptaccess="always"quality="high"name="9767434"id="9767434"style=""src="http://img.uu1001.cn/bcv1.swf?v=27abf379d0e5b169d5d02c121dd233438263df9b"type="application/x-shockwave-flash"//embed主制作专栏图次封面。专栏图要求总字数上5W。封面要求字数上3W。友情链接：center【专栏图格式】1.专栏地址：2.背景色调：3.文字色调：4.想要说的话：【封面格式】1.文地址：2.是否自带图：3.图片地址：【附加定制】总字数在10W以上可要求制作动态封面。/CENTERembedheight="798"width="278"flashvars="bannerWidth=278bannerHeight=798bannerSID=http://img.uu1001.cn/x/2010-08-15/23-34/2010-08-15_5637f36dc65c475857ffec9c81cb4155_1.xmlbannerXML=bannerLink=http://dataSource=bid=9756641appSource=default"wmode="transparent"allowscriptaccess="always"quality="high"name="9756641"id="9756641"style=""src="http://img.uu1001.cn/bcv1.swf?v=27abf379d0e5b169d5d02c121dd233438263df9b"type="application/x-shockwave-flash"//embed———————————embedheight="798"width="278"flashvars="bannerWidth=278bannerHeight=798bannerSID=http://img.uu1001.cn/x/2010-08-15/23-37/2010-08-15_0fb360656f48383c6f265b76ece8a1d9_1.xmlbannerXML=bannerLink=http://dataSource=bid=9756768appSource=default"wmode="transparent"allowscriptaccess="always"quality="high"name="9756768"id="9756768"style=""src="http://img.uu1001.cn/bcv1.swf?v=27abf379d0e5b169d5d02c121dd233438263df9b"type="application/x-shockwave-flash"//embedCENTERembedheight="320"width="202"flashvars="bannerWidth=202bannerHeight=320bannerSID=http://img.uu1001.cn/x/2010-08-15/23-44/2010-08-15_27a669798a4759735ebb8415360324b0_1.xmlbannerXML=bannerLink=http://dataSource=bid=9756991appSource=default"wmode="transparent"allowscriptaccess="always"quality="high"name="9756991"id="9756991"style=""src="http://img.uu1001.cn/bcv1.swf?v=27abf379d0e5b169d5d02c121dd233438263df9b"type="application/x-shockwave-flash"//embed/CENTER驻站两人：Reze，BluzeReze擅长专栏，Bluze擅长P图，可指定。 制图中rp的意思 制图中的ra 制图api 制图rz B&R

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