间同规整度
degree of syndiotacticity
安全度
degree of safety
degree of safet
security degree
strctural safety
safe grade
Safty
safety level
Safety
safety degree
safety margin
Security
Margin of safety
safety-degree
the degree of security
reliability
Pile
Safety factor
safety constraints
safe degree
stability margin
stability failure mechanism
安全度分析
analysis of structure safety
probabilistic risk ana-lysis(PRA
ajut