给排水管网图上的X,Y各代表什么？ 施工图上 x,y数据表示什么意思，谢谢，
\u7ed9\u6392\u6c34\u7ba1\u7f51\u56fe\u4e0a\u7684X,Y\u5404\u4ee3\u8868\u4ec0\u4e48\u8fd9\u4e24\u4e2a\u662f\u5750\u6807\u4f4d\u7f6e\uff0c\u4e00\u4e2a\u662fX\u8f74\u5750\u6807\uff0c\u4e00\u4e2aY\u8f74\u5750\u6807\uff0c\u4e24\u4e2a\u5750\u6807\u51b3\u5b9a\u4e00\u4e2a\u70b9
\u8868\u793a\u68c0\u67e5\u4e95\u6240\u5728\u7684\u5177\u4f53\u4f4d\u7f6e\u3002
\u65bd\u5de5\u56fe\u4e0a x\uff0cy\u6570\u636e\u8868\u793a\uff1a\u70b9\u7684\u5e73\u9762\u4f4d\u7f6e\uff0c\u8fd9\u4e2a\u70b9\u5728\u4e16\u754c\u5750\u6807\u7cfb\u4e0b\u7684\u6a2a\u5411\u548c\u7eb5\u5411\u7684\u503c\u662f\u591a\u5c11\uff0c\u5728\u6807\u6ce8\u91cc\u9762\u6709\u5750\u6807\u6807\u6ce8\u529f\u80fd\uff0cX\u662f\u7eb5\u8f74\u5750\u6807\uff0cY\u662f\u6a2a\u8f74\u5750\u6807\uff1b
\u5de5\u7a0b\u6d4b\u91cf\u5b9a\u4f4d\u63a7\u5236\u548c\u8ba1\u91cf\u90fd\u8981\u7528\u5230X\u3001Y\u7684\u5750\u6807\u503c\uff0c\u4e0e\u5f53\u5730\u7684\u56fd\u5bb6\u6807\u51c6\u5927\u5730\u5750\u6807\u7cfb\u6709\u5173\u7cfb\u3002
\u5750\u6807\u7684\u6982\u5ff5\uff1a\u6d4b\u91cf\u5750\u6807\u662f\u5efa\u7b51\u533a\u52d8\u6d4b\u8bbe\u8ba1\u65f6\u5efa\u7acb\u7684\u5e73\u9762\u76f4\u89d2\u5750\u6807\u7cfb\uff0c\u4e0e\u56fd\u5bb6\u5927\u5730\u6d4b\u91cf\u5750\u6807\u76f8\u4e00\u81f4\uff0c\u5750\u6807\u7eb5\u8f74\u4e3a\u5357\u5317\u65b9\u5411\uff0c\u7528X\u8868\u793a\uff0c\u6a2a\u8f74\u4e3a\u4e1c\u897f\u65b9\u5411\uff0c\u7528Y\u8868\u793a\u3002
\u6269\u5c55\u6750\u6599\uff1a
\u5750\u6807\u5e38\u7528\u7684\u5730\u7403\u53c2\u7167\u7cfb\u548c\u53c2\u8003\u6846\u67b6
1\u3001\u5730\u7403\u53c2\u7167\u7cfb\uff1a\u662f\u4e00\u79cd\u5730\u56fa\u7cfb\uff0c\u4e00\u79cd\u56fa\u5b9a\u5728\u5730\u7403\u4e0a\u968f\u5730\u7403\u4e00\u540c\u65cb\u8f6c\u7684\u5750\u6807\u7cfb\u3002\u540c\u6837\u6839\u636e\u5730\u7403\u53c2\u7167\u7cfb\u539f\u70b9\u9009\u53d6\u7684\u4e0d\u540c\u5206\u4e3a\u5730\u5fc3\u7cfb\u548c\u53c2\u5fc3\u7cfb\u3002
2\u3001\u534f\u8bae\u5730\u7403\u53c2\u7167\u7cfb\uff08CTRS\uff09\uff1a\u662f\u4e00\u79cd\u76f8\u5bf9\u5730\u7403\u56fa\u5b9a\u7684\u5730\u5fc3\u7cfb
\uff081\uff09\u76ee\u7684\uff1a\u4e3b\u8981\u662f\u4e3a\u4e86\u89e3\u51b3\u5168\u7403\u5750\u6807\u53c2\u7167\u7cfb\u4e0d\u7edf\u4e00\u5e26\u6765\u7684\u5404\u79cd\u95ee\u9898\u548c\u4e0d\u4fbf\uff1b
\uff082\uff09\u534f\u8bae\u5730\u7403\u53c2\u7167\u7cfb\uff1aConventional Terrestrial Reference System\uff08\u82f1\u6587\u540d\u79f0\uff09\uff1b
\uff083\uff09\u539f\u70b9\uff1a\u5730\u7403\u8d28\u5fc3 \uff1b
\uff084\uff09Z\u8f74\uff1a\u6307\u5411\u534f\u8bae\u5730\u6781CTP\uff08Conventional Terrestrial Pole\uff09,\u5373\u662f1900----1905\u5e74\u95f4\u5730\u6781\u7684\u5e73\u5747\u4f4d\u7f6e\uff1b
\uff085\uff09X\u8f74\uff1a\u6307\u5411\u534f\u8bae\u8d64\u9053\u4e0e\u683c\u6797\u5a01\u6cbb\u5b50\u5348\u5708\u7684\u4ea4\u70b9\uff0c\u6700\u7ec8\u4e0eY\u8f74\u4e00\u8d77\u5f62\u6210\u53f3\u624b\u5750\u6807\u7cfb\u3002
3\u3001\u534f\u8bae\u5730\u7403\u6846\u67b6(CTRF)\uff1a\u662f\u4e00\u7ec4\u5177\u6709\u6307\u5b9a\u534f\u8bae\u7684\u5730\u7403\u53c2\u7167\u7cfb\u4e0b\u7684\u5177\u6709\u7cbe\u786e\u5750\u7684\u70b9\u3002\u8fd9\u4e9b\u70b9\u5373\u534f\u8bae\u5730\u7403\u6846\u67b6\u662f\u521a\u8ff0\u53ca\u7684\u534f\u8bae\u5730\u7403\u53c2\u8003\u7cfb\u7684\u5b9e\u73b0\u3002CTRF\uff08Conventional Terrestrial Reference \uff09
4\u3001GPS\u6d4b\u91cf\u5b9a\u4f4d\u4e2d\u7684\u5730\u7403\u53c2\u7167\u7cfb\u548c\u53c2\u8003\u6846\u67b6
\u5728\u536b\u661f\u5bfc\u822a\u5b9a\u4f4d\u7cfb\u7edf\u4e2d\uff0c\u8f68\u9053\u6570\u636e\u901a\u5e38\u662f\u5730\u5fc3\u5730\u56fa\u7cfb\uff08ECEF----Earth-Centered Earth-Fixed\uff09\u4e0b\u7684\u6570\u636e,\u53ea\u6709\u8fd9\u6837\u624d\u80fd\u4fdd\u8bc1\u6700\u7ec8\u7684\u5b9a\u4f4d\u7ed3\u679c\u548c\u8f68\u9053\u6570\u636e\u540c\u5c5e\u4e8e\u76f8\u540c\u7684\u5750\u6807\u53c2\u7167\u7cfb\uff0c\u4ee5\u65b9\u4fbf\u8fdb\u884c\u76f8\u5173\u8ba1\u7b97\u3002
\u76ee\u524d\uff0c\u8f83\u4e3a\u5e38\u7528\u7684GPS\u536b\u661f\u8f68\u9053\u6570\u636e\u4e3b\u8981\u6709\u4e24\u79cd\uff1a\u57fa\u4e8eWGS-84\u7684\u5e7f\u64ad\u661f\u5386\u548c\u57fa\u4e8e\u56fd\u9645\u5730\u7403\u53c2\u8003\u6846\u67b6\uff08ITRF\uff09\u7684IGS\u7cbe\u5bc6\u661f\u5386\u3002
WGS-84\u5730\u7403\u53c2\u7167\u7cfb\uff1a\u82e5\u6d4b\u91cf\u5b9a\u4f4d\u65f6\u91c7\u7528\u7684\u662f\u5e7f\u64ad\u661f\u5386\uff0c\u5219\u7ed3\u679c\u5c5e\u4e8eWGS-84\u7cfb\u3002
WGS-84\u5730\u7403\u53c2\u7167\u7cfb\u662f\u4e00\u4e2a\u534f\u8bae\u5730\u7403\u53c2\u7167\u7cfb\uff0c\u662f\u4e00\u4e2a\u5730\u5fc3\u5730\u56fa\u53f3\u624b\u6b63\u4ea4\u5750\u6807\u7cfb\u3002\u5176\u5b9a\u4e49\u7684\u51c6\u5219\u5982\u4e0b\uff1a
\uff081\uff09\u4e3a\u5730\u5fc3\u7cfb\uff0c\u539f\u70b9\u4f4d\u4e8e\u5305\u62ec\u6d77\u6d0b\u548c\u5927\u6c14\u5728\u5185\u7684\u6574\u4e2a\u5730\u7403\u7684\u8d28\u5fc3\uff1b
\uff082\uff09\u5c3a\u5ea6\u5728\u5c40\u90e8\u5730\u7403\u6846\u67b6\u4e0b\uff0c\u9075\u5b88\u76f8\u5bf9\u8bba\u539f\u7406\uff1b
\uff083\uff09\u521d\u59cb\u5b9a\u5411\u7531\u56fd\u9645\u65f6\u95f4\u5c40\uff08BIH\uff091984.0\u7684\u5b9a\u5411\u7ed9\u5b9a\uff1b
\uff084\uff09\u5b9a\u5411\u4e2d\u7684\u65f6\u53d8\u4e0d\u4f1a\u4f7f\u5730\u58f3\u4ea7\u751f\u6b8b\u4f59\u7684\u5168\u7403\u6027\u65cb\u8f6c \u6839\u636e\u4e0a\u8ff0\u51c6\u5219\uff0cWGS-84\u534f\u8bae\u5730\u7403\u53c2\u7167\u7cfb\u3002
5\u3001\u5b9a\u4e49
\uff081\uff09\u539f\u70b9\u4f4d\u4e8e\u5730\u7403\u8d28\u5fc3\uff08Earth's Center of Mass\uff09\uff1b
\uff082\uff09Z\u8f74\u4e0eIERS(\u56fd\u9645\u5730\u7403\u81ea\u8f6c\u53ca\u53c2\u7167\u7cfb\u670d\u52a1-----International Earth Rotation and Reference System Service)\u53c2\u8003\u6781\uff08IRP---IERS Reference Pole\uff09\u6307\u5411\u76f8\u540c\uff0c
\u8be5\u6307\u5411\u4e0e1984.0\u5386\u5143\u7684BIH\u534f\u8bae\u5730\u6781\uff08CTP-----Conventional Terrestrial Pole\uff09\u4e00\u81f4\uff1b
\uff083\uff09X\u8f74\u6307\u5411IERS\u53c2\u8003\u5b50\u5348\u7ebf\uff08IRM\uff09\u4e0e\u8fc7\u539f\u70b9\u4e14\u5782\u76f4\u4e8eZ\u8f74\u5e73\u9762\u7684\u4ea4\u70b9\uff1b
\uff084\uff09Y\u8f74\u6700\u7ec8\u5b8c\u6210\u53f3\u624b\u5730\u5fc3\u5730\u56fa\u6b63\u4ea4\u7cfb\u3002
6\u3001\u56fd\u9645\u5730\u7403\u53c2\u7167\u7cfb\uff08ITRS-----International Terrestrial Reference System\uff09\u662f\u7531IERS\u6240\u5b9a\u4e49\u7684\u4e00\u4e2a\u534f\u8bae\u5730\u7403\u53c2\u7167\u7cfb\uff0c\u5176\u5b9a\u4e49\u6ee1\u8db3\u5982\u4e0b\u6761\u4ef6\uff1a
\uff081\uff09\u539f\u70b9\u4f4d\u4e8e\u5730\u7403\u8d28\u5fc3\uff0c\u5730\u7403\u8d28\u5fc3\u4e3a\u5305\u62ec\u6d77\u6d0b\u548c\u5927\u6c14\u5728\u5185\u7684\u6574\u4e2a\u5730\u7403\u7684\u8d28\u5fc3\uff1b
\uff082\uff09\u957f\u5ea6\u5c3a\u5ea6\u4e3a\u56fd\u9645\u5355\u4f4d\u5236\u7c73\uff1b
\uff083\uff09\u521d\u59cb\u5b9a\u5411\u4e3a\u56fd\u9645\u65f6\u95f4\u5c40\uff08BIH\uff09\u6240\u7ed9\u51fa\u76841984.0\u5b9a\u5411\uff1b
\uff084\uff09\u5b9a\u5411\u7684\u65f6\u53d8\u901a\u8fc7\u4e00\u4e2a\u5173\u4e8e\u5168\u7403\u6c34\u5e73\u8fd0\u52a8\u6784\u9020\u8fd0\u52a8\u7684\u975e\u51c0\u65cb\u8f6c\u6761\u4ef6.
7\u3001\u56fd\u9645\u5730\u7403\u53c2\u8003\u6846\u67b6\uff1a\u662fITRS\u7684\u5b9e\u73b0\uff0c\u662f\u7531\u4e00\u7ec4\u5177\u6709ITRS\u4e0b\u5750\u6807\u548c\u901f\u5ea6\u4f30\u503c\u7684IERS\u89c2\u6d4b\u7ad9\u7ec4\u6210\uff0c\u5e76\u7531IERS\u4e2d\u5fc3\u5c40\u7684\u5730\u7403\u53c2\u8003\u6846\u67b6\u90e8\u8d1f\u8d23\u5efa\u7acb\u548c\u7ef4\u62a4\u3002\u4e0b\u9762\u4ec5\u4ee5ITRF2000\u7684\u57fa\u51c6\u5b9a\u4e49\u4e3a\u4f8b\u8bf4\u660e\uff1a
\u5c3a\u5ea6\uff1a\u901a\u8fc7\u5c06ITRF2000\u4e0eVLBI \u548c\u6240\u6709\u53ef\u9760SLR\u89e3\u7684\u52a0\u6743\u5e73\u5747\u503c\u4e4b\u95f4\u7684\u5c3a\u5ea6\u548c\u5c3a\u5ea6\u6241\u7387\u8bbe\u4e3a0\u6765\u5b9e\u73b0
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-\u5750\u6807\u8f74
\u767e\u5ea6\u767e\u79d1-\u5750\u6807
绛旓細鍦ㄧ粰鎺掓按鐨勫浘绾镐腑锛X涓鑸〃绀虹殑鏄秷闃茬粰姘寸閬锛孞/G琛ㄧず鐨勬槸缁欐按绠￠亾锛學/F琛ㄧず姹″簾姘寸閬擄紝Y琛ㄧず闆ㄦ按绠￠亾
绛旓細琛ㄧず妫鏌ヤ簳鎵鍦ㄧ殑鍏蜂綋浣嶇疆銆
绛旓細渚涙按绠￠亾-J锛屽鏋滃垎楂樹綆鍖洪氬父鐢ㄩ瀛楁瘝琛ㄧず鍗抽珮鍖-G锛屼綆鍖-D銆 鎺掓按绠￠亾-W,琛ㄧず姹℃按銆備篃鏈-F锛屽氨鏄簾姘淬傚緢灏戣鏈夌敤-P琛ㄧず鐨勩 娑堢伀鏍撶閬-XH銆 鑷姩鍠锋穻绠￠亾-Z鎴栬-ZP. 闆ㄦ按绠￠亾-Y. 閲囨殩绠￠亾-R锛屼竴鑸疄绾胯〃绀轰緵姘寸锛岃櫄绾胯〃绀哄洖姘寸銆鍘嬪姏鎺掓按-PY. 鍐峰嚌姘寸閬-N銆 绠￠亾绔嬬-L. 鍙﹀璁惧鐨...
绛旓細缁欐按绠￠亾-J锛屽鏋滃垎楂樹綆鍖洪氬父鐢ㄩ瀛楁瘝琛ㄧず鍗抽珮鍖-G锛屼綆鍖-D銆傛帓姘寸閬-W,琛ㄧず姹℃按銆備篃鏈-F锛屽氨鏄簾姘淬傚緢灏戣鏈夌敤-P琛ㄧず鐨勩娑堢伀鏍撶閬-XH銆鑷姩鍠锋穻绠￠亾-Z鎴栬-ZP銆傞洦姘寸閬-Y銆閲囨殩绠￠亾-R锛屼竴鑸疄绾胯〃绀轰緵姘寸锛岃櫄绾胯〃绀哄洖姘寸銆傚帇鍔涙帓姘-PY銆傚喎鍑濇按绠￠亾-N銆傜閬撶珛绠-L銆傚彟澶栬澶囩殑鍨嬪彿瀛楁瘝锛...
绛旓細娑堢伀鏍撶閬-XH銆傝嚜鍔ㄥ柗娣嬬閬-Z鎴栬-ZP銆傞洦姘寸閬-Y銆閲囨殩绠￠亾-R锛屼竴鑸疄绾胯〃绀轰緵姘寸锛岃櫄绾胯〃绀哄洖姘寸銆傚帇鍔涙帓姘-PY銆傚喎鍑濇按绠￠亾-N銆傜閬撶珛绠-L銆傚彟澶栬澶囩殑鍨嬪彿瀛楁瘝锛歈-娴侀噺鎴栬呴閲忋侶-鎵▼銆侼-鍔熺巼銆侾-鍘嬪姏銆俀W-娼滄薄娉点傚叾浠栭榾闂ㄣ佸櫒鍏蜂箣绫荤殑閮芥槸鐢ㄥ浘褰㈠尯鍒嗐侸L-缁欐按绠°俉L-姹℃按绠°俌L-闆ㄦ按...
绛旓細鍦缁欐帓姘宸ョ▼鍥剧焊涓紝鍚勪釜瀛楁瘝缂╁啓浠ｈ〃濡備笅鍚箟锛1. 缁欐按绠￠亾 - J 2. 楂樺尯缁欐按 - G 3. 浣庡尯缁欐按 - D 4. 鎺掓按绠￠亾 - W 5. 姹℃按 - 鏈壒鍒寚鍑虹缉鍐 6. 搴熸按 - F 7. 娑堢伀鏍撶閬 - XH 8. 鑷姩鍠锋穻绠￠亾 - Z 鎴 ZP 9. 闆ㄦ按绠￠亾 - Y 10. 閲囨殩绠￠亾 - R 11. 鍘嬪姏鎺掓按 - PY 12. ...
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