M点高程HM=43. 251m,测得后视读数a=1. 000m,前视读数b=2. 283m。则视线高Hi和待求点N的高程分别为:A. 45. 534m,43. 251m B. 40. 968m,38. 6S5mC. 44. 251m,41. 968m D. 42. 251m,39. 968m
M点高程HM=43. 251m,测得后视读数a=1. 000m,前视读数b=2. 283m。则视线高Hi和待求点N的高程分别为:
A. 45. 534m,43. 251m B. 40. 968m,38. 6S5m
C. 44. 251m,41. 968m D. 42. 251m,39. 968m
A. 45. 534m,43. 251m B. 40. 968m,38. 6S5m
C. 44. 251m,41. 968m D. 42. 251m,39. 968m
参考解析
解析:提示:Hi=HA+a,HB=Hi+b。
相关考题:
M点高程HM = 43. 251m,测得后视读数a=1. 000m,前视读数b=2. 283m。则N点对M点的高差hMN和待求点N的高程HN分别为:A. 1. 283m ,44. 534mB. -3. 283m,39. 968mC. 3. 283m ,46. 534mD. -1. 283m,41. 968m
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