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spheric harmonic
 spheric harmonics
tech. 球谐函数; 球函数
| coefficient
 coefficient
avia. 协同因素
earth.sc. 导数; 因素
interntl.trade. 折算率
radio.amat. 系数
space 因数
tech. 系数;

to phrases
spheric harmonics
tech. 球谐函数; 球函数
spheric harmonic: 21 phrases in 3 subjects
Geophysics2
Oil / petroleum1
Technology18