请问这种圆规怎么装铅芯，我拧了那个螺丝，没有用，请教教我，谢谢！ 理工学科是什么
\u7406\u5de5\u77e5\u8bc6\u6709\u54ea\u4e9b\u7406\u5de5\u7c7b\u5b66\u79d1\u662f\u5927\u5b66\u4e13\u4e1a\u5206\u7c7b\u4e2d\u6700\u5e7f\u7684\u5b66\u79d1\uff0c\u4ee5\u81ea\u7136\u5b66\u79d1\u4e3a\u57fa\u7840\uff0c\u7740\u91cd\u5206\u6790\u81ea\u7136\u79d1\u5b66\u9886\u57df\u548c\u751f\u4ea7\u5e94\u7528\u9886\u57df\u5185\u6240\u6709\u7684\u65b9\u9762\u548c\u5e94\u7528\u65b9\u5411\u3002\u7406\u5de5\u79d1\u4e13\u4e1a\u90fd\u662f\u9762\u5411\u9ad8\u8003\u7406\u79d1\u8003\u751f\u62db\u751f\u3002\u4e3b\u8981\u4e24\u4e2a\u65b9\u5411\u4e3a\u7406\u5b66\u548c\u5de5\u5b66\u3002
1\u3001\u7406\u79d1\u548c\u5de5\u79d1\u672c\u8eab\u662f\u76f8\u8f85\u76f8\u6210\u7684\uff0c\u533a\u522b\u5728\u4e8e\u4fa7\u91cd\u4e0d\u540c\u3002\u7406\u79d1\u548c\u5de5\u79d1\u7684\u533a\u522b\u5f88\u591a\u4eba\u90fd\u5f88\u8ff7\u60d1\u3002\u5176\u5b9e\u6700\u7b80\u5355\u7684\u89e3\u91ca\u5c31\u662f\uff1a\u7406\u5b66\u4fa7\u91cd\u7406\u8bba\u7814\u7a76\u548c\u79d1\u5b66\u57f9\u517b\uff0c\u5229\u4e8e\u6df1\u9020\uff1b\u5de5\u5b66\u4fa7\u91cd\u6280\u672f\u5e94\u7528\u3002\u5176\u5b9e\u7406\u79d1\u548c\u5de5\u79d1\u4e2d\u51e0\u4e4e\u6240\u6709\u7684\u4e13\u4e1a\u90fd\u76f8\u5bf9\u5e94\uff1a\u4f8b\u5982\u7406\u5b66\u4e2d\u6709\u6750\u6599\u79d1\u5b66\u7c7b\u5b66\u79d1\u800c\u5de5\u5b66\u4e2d\u5c31\u6709\u6750\u6599\u7c7b\u5b66\u79d1\u3002\u6b63\u56e0\u5982\u6b64\uff0c\u5f88\u591a\u4eba\u624d\u628a\u4ed6\u4eec\u6df7\u4e3a\u4e00\u8c08\u3002\u867d\u7136\u7406\u4e0e\u5de5\u4e4b\u95f4\u6709\u5f88\u591a\u4ea4\u53c9\uff0c\u4f46\u662f\u5b83\u4eec\u7684\u533a\u522b\u8fd8\u662f\u5f88\u5927\u7684\u3002\u6750\u6599\u79d1\u5b66\u7740\u91cd\u57f9\u517b\u638c\u63e1\u57fa\u672c\u7406\u8bba\uff0c\u5177\u5907\u76f8\u5173\u57fa\u672c\u77e5\u8bc6\u548c\u57fa\u672c\u6280\u80fd\uff0c\u57f9\u517b\u80fd\u5728\u6750\u6599\u79d1\u5b66\u5de5\u7a0b\u53ca\u4e0e\u5176\u76f8\u5173\u7684\u9886\u57df\u4ece\u4e8b\u7814\u7a76\u3001\u6559\u5b66\u3001\u79d1\u6280\u5f00\u53d1\u53ca\u76f8\u5173\u7ba1\u7406\u5de5\u4f5c\u7684\u6750\u6599\u7c7b\u9ad8\u7ea7\u4e13\u95e8\u4eba\u624d\u3002\u5de5\u79d1\u4e2d\u7684\u6750\u6599\u7c7b\u5374\u4e3b\u8981\u57f9\u517b\u80fd\u5728\u4e13\u4e1a\u9886\u57df\u5185\u4ece\u4e8b\u751f\u4ea7\u3001\u8bbe\u8ba1\u3001\u79d1\u7814\u548c\u7ba1\u7406\u5de5\u4f5c\u7684\u9ad8\u7ea7\u5de5\u7a0b\u6280\u672f\u4eba\u624d\u3002
2\u3001\u7406\u79d1\u90e8\u5206\u4e13\u4e1a\u548c\u5b66\u79d1\u7c7b\u4ecb\u7ecd\uff1a
\u751f\u7269\u79d1\u5b66\u7c7b\uff1a
\u4e13\u4e1a\u5305\u62ec\u751f\u7269\u79d1\u5b66\u548c\u751f\u7269\u6280\u672f\u4e24\u4e2a\u4e13\u4e1a\u65b9\u5411\uff0c\u672c\u4e13\u4e1a\u5b66\u79d1\u7c7b\u57f9\u517b\u5b66\u751f\u4e3b\u8981\u5b66\u4e60\u751f\u7269\u79d1\u5b66\u6280\u672f\u65b9\u9762\u7684\u57fa\u672c\u7406\u8bba\u3001\u57fa\u672c\u77e5\u8bc6\uff0c\u5b66\u751f\u5c06\u53d7\u5230\u5e94\u7528\u57fa\u7840\u7814\u7a76\u548c\u6280\u672f\u5f00\u53d1\u65b9\u9762\u7684\u79d1\u5b66\u601d\u7ef4\u548c\u79d1\u5b66\u5b9e\u9a8c\u8bad\u7ec3\uff0c\u8fdb\u800c\u5177\u6709\u8f83\u597d\u7684\u79d1\u5b66\u7d20\u517b\u53ca\u521d\u6b65\u7684\u6559\u5b66\u3001\u7814\u7a76\u3001\u5f00\u53d1\u4e0e\u7ba1\u7406\u7684\u57fa\u672c\u80fd\u529b.\u5c31\u4e1a\u76ee\u6807\u548c\u524d\u666f\u5206\u6790\uff1a\u80fd\u5728\u79d1\u7814\u673a\u6784\u6216\u9ad8\u7b49\u5b66\u6821\u4ece\u4e8b\u79d1\u5b66\u7814\u7a76\u6216\u6559\u5b66\u5de5\u4f5c\uff0c\u80fd\u5728\u5de5\u4e1a\u3001\u533b\u836f\u3001\u98df\u54c1\u3001\u519c\u3001\u6797\u3001\u7267\u3001\u6e14\u3001\u73af\u4fdd\u3001\u56ed\u6797\u7b49\u884c\u4e1a\u7684\u4f01\u4e1a\u3001\u4e8b\u4e1a\u548c\u884c\u653f\u7ba1\u7406\u90e8\u95e8\u4ece\u4e8b\u4e0e\u751f\u7269\u6280\u672f\u6709\u5173\u7684\u5e94\u7528\u7814\u7a76\u3001\u6280\u672f\u5f00\u53d1\u3001\u751f\u4ea7\u7ba1\u7406\u548c\u884c\u653f\u7ba1\u7406\u7b49\u5de5\u4f5c\u3002\u4f5c\u4e3a\u8fd1\u51e0\u5e74\u53d1\u5c55\u8d77\u6765\u7684\u8fb9\u6cbf\u5b66\u79d1\uff0c\u6df1\u9020\u5bf9\u4e8e\u4ece\u4e8b\u7814\u7a76\u6709\u597d\u5904\uff0c\u4f46\u662f\u6df1\u9020\u7ade\u4e89\u76f8\u5bf9\u6bd4\u8f83\u5927\uff0c\u3002
\u751f\u7269\u79d1\u5b66\u7c7b\u63a8\u8350\u9662\u6821\uff1a\u4e2d\u56fd\u79d1\u6280\u5927\u5b66 \u5317\u4eac\u5927\u5b66
\u6d77\u6d0b\u79d1\u5b66\u7c7b\uff1a
\u4e13\u4e1a\u5305\u62ec\u6d77\u6d0b\u79d1\u5b66\u548c\u6d77\u6d0b\u6280\u672f\u3002\u672c\u4e13\u4e1a\u5b66\u79d1\u7c7b\u57f9\u517b\u5b66\u751f\u5177\u6709\u575a\u5b9e\u7684\u6570\u5b66\u3001\u7269\u7406\u5b66\u53ca\u6d77\u6d0b\u79d1\u5b66\u3001\u6280\u672f\u65b9\u9762\u7684\u57fa\u672c\u7406\u8bba\u548c\u57fa\u672c\u77e5\u8bc6\uff0c\u53d7\u5230\u6d77\u6d0b\u79d1\u5b66\u548c\u6280\u672f\u7814\u7a76\u65b9\u9762\u7684\u57fa\u672c\u8bad\u7ec3\uff0c\u638c\u63e1\u6d77\u6d0b\u79d1\u5b66\u57fa\u672c\u8c03\u67e5\u65b9\u6cd5\u548c\u5b9e\u9a8c\u6280\u80fd\uff0c\u5177\u6709\u4ece\u4e8b\u6d77\u6d0b\u8c03\u67e5 \u548c\u6d77\u6d0b\u79d1\u5b66\u7814\u7a76\u7684\u57fa\u672c\u80fd\u529b\u3002
\u5c31\u4e1a\u76ee\u6807\u548c\u524d\u666f\uff1a\u5b66\u751f\u5177\u5907\u6d77\u6d0b\u79d1\u5b66\u7684\u57fa\u672c\u77e5\u8bc6\u53ca\u6d77\u6d0b\u9ad8\u65b0\u6280\u672f\u5f00\u53d1\u7814\u7a76\u7684\u80fd\u529b\uff0c\u80fd\u4ece\u4e8b\u6d77\u6d0b\u9ad8\u79d1\u6280\u3001\u6d77\u6d0b\u8d44\u6e90\u5f00\u53d1\u53ca\u6d77\u6d0b\u5de5\u7a0b \u7ee7\u7eed\u6df1\u9020\u7684\u51e0\u7387\u4e5f\u6bd4\u8f83\u5927\u3002
\u6d77\u6d0b\u79d1\u5b66\u7c7b\u63a8\u8350\u9662\u6821\uff1a\u4e2d\u56fd\u6d77\u6d0b\u5927\u5b66
\u5fc3\u7406\u5b66\u7c7b\uff1a
\u4e13\u4e1a\u5305\u62ec\u5fc3\u7406\u5b66\u548c\u5e94\u7528\u5fc3\u7406\u5b66\u3002\u672c\u4e13\u4e1a\u5b66\u751f\u4e3b\u8981\u5b66\u4e60\u5fc3\u7406\u5b66\u65b9\u9762\u7684\u57fa\u672c\u7406\u8bba\u548c\u57fa\u672c\u77e5\u8bc6\uff0c\u53d7\u5230\u5fc3\u7406\u5b66\u79d1\u5b66\u601d\u7ef4\u548c\u79d1\u5b66\u5b9e\u9a8c\u7684\u57fa\u672c\u8bad\u7ec3\uff0c\u5177\u6709\u826f\u597d\u7684\u79d1\u5b66\u7d20\u517b\uff0c\u5177\u5907\u8fdb\u884c\u5fc3\u7406\u5b66\u5b9e\u9a8c\u548c\u5fc3\u7406\u6d4b\u91cf\u7684\u57fa\u672c\u80fd\u529b\u3002
\u7406\u5de5 \u7406\u5de5\u662f\u4e00\u4e2a\u5e7f\u5927\u7684\u9886\u57df\u5305\u542b\u7269\u7406\u3001\u5316\u5b66\u3001\u751f\u7269\u3001\u5de5\u7a0b\u3001\u5929\u6587\u3001\u6570\u5b66\u53ca\u524d\u9762\u516d\u5927\u7c7b\u7684\u5404\u79cd\u8fd0\u7528\u4e0e\u7ec4\u5408\u3002\u7406\u5de5\u4e8b\u5b9e\u4e0a\u662f\u81ea\u7136\u3001\u79d1\u5b66\u3001\u548c\u79d1\u6280\u7684\u5bb9\u5408\u3002\u5728\u897f\u65b9\u4e16\u754c\u91cc\uff0c\u7406\u5de5\u8fd9\u4e2a\u5b57\u5e76\u4e0d\u5b58\u5728\uff1b\u7406\u5de5\u5728\u82f1\u6587\u89e3\u91ca\u91cc\uff0c\u662f\u81ea\u7136(Science)\u4e0e\u79d1\u6280(Technology)\u7684\u7ed3\u5408\u3002\u7406\u5de5\u4e8c\u5b57\u6700\u65e9\u662f1880\u5e74\u4ee3\uff0c\u7531\u5f53\u65f6\u7684\u4e2d\u56fd\u7559\u5b66\u751f\u4ece\u56fd\u5916\u7684Science\u548cTechnology\u7ffb\u8bd1\u5408\u6210\u7684\u3002\u65f6\u81f3\u4eca\u65e5\uff0c\u4f46\u51e1\u6709\u4eba\u63d0\u8d77\u4e16\u754c\u7406\u5de5\u5927\u5b66\u4e4b\u6700\uff0c\u4eba\u4eba\u7686\u63a8\u9ebb\u7701\u7406\u5de5\u5b66\u9662\u3002\u9ebb\u7701\u4e4b\u540d\u871a\u58f0\u6d77\u5916\uff0c\u6210\u4e3a\u4e16\u754c\u5404\u5730\u8398\u8398\u5b66\u5b50\u5fc3\u5411\u795e\u5f80\uff0c\u8d8b\u4e4b\u82e5\u9e5c\u7684\u79d1\u5b66\u5723\u6bbf\u3002 [\u7f16\u8f91] \u7406\u5de5\u9886\u57df\u5305\u542b \u7269\u7406-\u7814\u7a76\u5927\u81ea\u7136\u73b0\u8c61\u53ca\u89c4\u5f8b\u7684\u5b66\u95ee \u5316\u5b66-\u7814\u7a76\u7269\u8d28\u7684\u6027\u8d28\u3001\u7ec4\u6210\u3001\u7ed3\u6784\u548c\u53d8\u5316\u7684\u79d1\u5b66 \u751f\u7269-\u7814\u7a76\u6709\u751f\u547d\u7684\u4e2a\u4f53 \u5de5\u7a0b-\u5e94\u7528\u79d1\u5b66\u548c\u6280\u672f\u7684\u539f\u7406\u6765\u89e3\u51b3\u4eba\u7c7b\u95ee\u9898 \u5929\u6587-\u89c2\u5bdf\u53ca\u89e3\u91ca\u5929\u4f53\u7684\u7269\u8d28\u72b6\u51b5\u53ca\u4e8b\u4ef6\u4e3a\u4e3b\u7684\u5b66\u79d1 \u6570\u5b66-\u7814\u7a76\u91cf\u3001\u7ed3\u6784\u3001\u53d8\u5316\u4ee5\u53ca\u7a7a\u95f4\u6a21\u578b\u7684\u5b66\u79d1;\u88ab\u8a89\u4e3a\u201c\u79d1\u5b66\u7684\u8bed\u8a00\u201d
从前面装，我用过这个！前面还有一个螺丝是紧铅笔芯的，拧开就可以了转动铅笔芯那个套环就行了
对，没错，我这次期末考试前几分钟刚想起来圆规没装，但是我怎么拧也拧不开，急死了……emmm
最后，机智的我用另一个圆规（向同桌借的）把它撬开，最终它还是被本帅撬开了呵呵呵
如果这样怎么办？
绛旓細鏅曡繖涔堝彜鑰佺殑涓滆タ涔熻兘缈诲嚭鏉ャ傛妸涓嶅甫閽堢殑閭ｅ彧鑴氫笂闈㈤偅涓渾褰㈣灪涓濇澗涓涓嬶紝璋冧竴涓嬪ご銆傝皟涓嬫潵鐨勫ご鍙互鎷у紑锛屾妸閲岄潰鐨勫弬涓閾蹇冨彇鍑猴紝鏇存崲涓涓紝鍐鎷涓婂氨鍙互浣跨敤鍟︺傛弧鎰忚閲囩撼銆
绛旓細鐪嬪埌閭ｄ釜鑴氫笂鐨勮灪涓濅簡娌★紝灏嗕粬鎷у紑銆傜劧鍚庛傛嬁鍑轰竴鏍閾銆傚杩涘幓銆鎷涓婅灪涓濄備笉瑕佹嫥鐨勫お绱ч槻姝㈤搮鏂帀銆
绛旓細绗斿ご
绛旓細涓涓富浣擄紝杩樻湁涓涓垨涓や釜閽堣剼锛 鍐嶆湁灏辨槸甯﹀す瀛愮殑锛屾斁閾呰姱鎴栧す閾呯瑪鐨 濡傛灉涓讳綋涓婂彧鏈変竴涓剼鑳藉姩锛岄偅涔堜笉鑳藉姩鐨勫摢涓剼鏄寜閽堣剼鐨
绛旓細濡傛灉娌℃湁鍏冧欢鎹熷潖鐨勮瘽锛屽畬鍏ㄥ彲浠ヨ鍥炲幓銆傛寜鐓ц窡鎷嗗紑鐨勬搴忕浉鍙嶇殑娆″簭锛屽氨鍙互瀹夎璧锋潵銆傚鏋滃繕浜嗘搴忥紝灏辨寜鐓ц嚜宸辩殑鎯宠薄鍘瀹夎锛濡傛灉閿欎簡锛屽氨閲嶆柊鏉ワ紝姝ｅソ鏄竴娆￠敾鐐煎姩鎵嬭兘鍔涚殑鏈轰細銆
绛旓細鎶鍦嗚涓婄殑閭ｄ釜灏栧ご鎷涓嬫潵锛屾崲涓婅閾鐨勯偅涓紝鍏朵綑鐨勭敤涓嶅埌(楦槾澶存槸鐢ㄦ潵鎻忓浘鐨勶紝鏄病鏈夌數鑴戠殑骞翠唬鐢ㄧ殑銆傞偅涓暱鏉嗚鍦ㄥ渾瑙勪笂鍙互鐢绘洿澶х殑鍦嗐)
绛旓細1.浼氬彂鐜颁腑闂村叾瀹炴湁鏉＄紳闅,鏉ュ鐞杩欑鎯呭喌銆2.鐒跺悗鎷у紑瀹氭嫄閽堥偅杈圭殑铻烘瘝 3.灏嗗畾鎷愰拡鐨勯浂浠跺彇鍑,鐒跺悗鍙栧嚭瀹氭嫄閽 4.鏈鍚庣敤瀹氭嫄閽堟妸鏂帀鐨勭瑪鑺姞鍑烘潵,灏卞彲浠ヤ簡銆
绛旓細鍝锛熸崲閾呮潯杩樻槸鎹㈢矖閾呯瑪鑺殑 浣犲彲浠ユ壘鍒汉瑁呬竴涓嬶紝涓鑸彧瑕佷笉鎹熷潖鐨勮瘽閮借兘瑁呭洖鍘
绛旓細浣跨敤閽堝ご鏃嬭浆鍙栧嚭銆佷娇鐢ㄥ皬鍒鎸戝嚭銆佸彇涓鍦嗚閲戝睘绠嶇瓑銆1銆佷娇鐢ㄩ拡澶存棆杞彇鍑猴細灏嗕竴鏍圭粏灏栫殑閽堟垨鍒拡鎻掑叆鏂姱鐨勭紳闅欎腑锛岀劧鍚庢參鎱㈡棆杞拡澶淬傞氳繃閫愭笎澧炲姞澶栧姏骞惰交杞绘嫈璧凤紝灏濊瘯灏嗘柇鑺粠鍐呴儴鎷斿嚭鏉ャ2銆佷娇鐢ㄥ皬鍒鎸戝嚭锛氫娇鐢ㄤ竴涓粏灏忎笖閿嬪埄鐨勫皬鍒锛堜緥濡傚壀鍒涓婅緝涓哄皷閿愮殑閮ㄥ垎锛夋部鐫绗斿皷鏂瑰悜锛屽湪閲戝睘绠嶅拰鍦嗚涔嬮棿鎵惧埌...
绛旓細绗旇涓嶄粎浠呭琛ㄧ編涓,杩樺緢瀹炵敤,鎵撳紑鐪嬬湅,灞呬綇鍦ㄥ畠閲岄潰鐨勬垚鍛樹篃涓嶅皯:鏈夋椿娉煎彲鐖辩殑姗＄毊,鏈夋ф牸鐩寸埥鐨勯挗绗,鏈夋矇榛樺瑷鐨勭洿灏,鏈夎佸ぇ鑷姩閾,鏈夋暎鍙戠潃娓呴鐨勮崸鍏夌瑪,鏈夊彲鐖辩殑灏忕唺鐩閾呰姱,杩樻湁鍥炬鏂伴鐨勪腑鎬х瑪绛夈傝櫧鐒跺悇涓垚鍛樼殑鎬ф牸涓嶅悓,鍙槸鐩稿寰楁尯鍜岀潶銆 鎴戠埍鎴戠簿宸у彲鐖,鎯熷鎯熻倴,绠鏈村疄鐢ㄧ殑灏忕瑪琚! 鎴戠殑绗旇 鎴戞湁...
