第一法向应力差
the first normal stress difference
primary normal stress difference
first normal stress difference
低速压力差
underspeed pressure differential
能力差别教学法
ability-difference teaching method
主动型安全防护
the initiative type safe safeguard
智能安全防护软件
Intelligent Security Defense Software ISDS
职业安全防护
Occupational safe proctection
信息安全防护
information security defense
information security protection
网络安全防护体系
protection system of network security
network security protection system
网络安全防护
network security protection
network security
完美的安全防护性能
full safety protection feature
四元系统安全防护阀
four element system protection valve
数据网和安全防护
data network and safety protection