ultimate factor of safety

• 极限安全系数

ultimate factor of safety的用法和样例：

例句

1. The margin of safety has grown thin.
   安全系数已变小了。
2. The engineer is well advised to exercise caution in the choice of the parameters used in the factor of safety calculation.
   我们诚恳地劝告工程师注意安全系数计算中所用参数的选择。