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地震横波 dìzhèn héngbō
gen. secondaiy wave
archit. S-wave
avia. S wave
hydroel.st. S wave (secondary wave)
tech. secondary wave; second wave; transverse wave
地震横波
: 3 phrases in 3 subjects
Explosives and Explosive Ordnance Disposal1
Geophysics1
Oil / petroleum1