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protection factors
 protection factor
el. 防护因数; 防护因子
of a | protective device
 protective device
auto. 安全设备
avia. 防护措施
CNC 安全装置
dermat. 防护性装置
met. 保护装置
space 防护装备
sport. 保护性装置
tech. 防护设备

to phrases
protection factor
el. 防护因数【核】; 防护因子
protection factors of a protective device
: 6 phrases in 6 subjects
Air defense1
Desert science1
Explosives and Explosive Ordnance Disposal1
Hydroelectric power stations1
Information technology1
Space1