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氮气密封
 氮气密封
tech. nitrogen-sealed
| 装置
 装置
gen. installation
hydroel.st. setting; appliance
met. arranger; assembly; attachment
rem.sens. accommodation
sport. facility

to phrases
氮气密封
tech. nitrogen-sealed
氮气密封
: 6 phrases in 3 subjects
Electric machinery1
Electronics1
Technology4