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azimuth reference
 azimuth reference
space 方位基准
| datum
 datum
met. 论据; 基线; 基准; 已知数
tech. 数据; 资料
UN cartogr. 基准

to phrases
azimuth reference
space 方位基准
tech. 方位参考标
azimuth reference datum
: 19 phrases in 6 subjects
Air defense1
Aviation3
Electronics1
Geophysics1
Space9
Technology4