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Doppler range
 Doppler range
tech. 多普勒测距系统
| and
 AND
el. ; 逻辑电路"与"
 and
gen. ; ; ; ;
busin. 以及;
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Doppler range
tech. 多普勒测距系统
Doppler range and navigation
: 29 phrases in 8 subjects
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