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潜航 qiánháng
gen. dive (dived, dove)
space dive (潜艇的)
tech. submerge; submerged navigation
潜航
: 57 phrases in 11 subjects
Air defense5
Aviation5
Earth sciences1
Electronics5
General6
Nautical1
Oil / petroleum1
Shipbuilding3
Space15
Technology14
United Nations1