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absolute frame
 absolute frame abbr.
avia. 绝对坐标系
 | of reference
 of reference abbr.
railw. 参考的; 基准的

to phrases

absolute frame

avia. 绝对坐标系
absolute frame
: 4 phrases in 3 subjects
Aviation2
Explosives and Explosive Ordnance Disposal1
Rail transport1

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