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6Â¥2007-11-07 09:14:21
zt970831
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zhotihu(½ð±Ò+1,VIP+0):лл
zhotihu(½ð±Ò+1,VIP+0):лл
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Which coordinates can be used in the survey? and how to express their position? ´íÎóµÄµØ·½£¬ÇëÖ¸Õý |

2Â¥2007-11-06 23:32:00
lililong0
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zhotihu(½ð±Ò+1,VIP+0):лл
| Surveying, which can be used several coordinates? How that ground their position? |
3Â¥2007-11-06 23:38:46
liuwei0551
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zhotihu(½ð±Ò+1,VIP+0):лл
zhotihu(½ð±Ò+1,VIP+0):лл
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Which reference frame can be used in the surveying? and how to express their position on the ground,respectively? |
4Â¥2007-11-07 08:16:56














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