We use unilateral normal distribution of upper magnitude limit instead of fixed one and analyze the results of seismic hazard analysis of this change and engineer meaning of it.

用震级上限的单边正态分布模型代替固定的震级上限模型，分析了这种改进对地震危险性分析结果的影响及其工程意义。

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In seismic hazard analysis computation, there is much uncertainty in the process of defining latent focal region and upper magnitude limit.

目前进行的地震危险性分析计算中，潜在震源区范围和震级上限的确定过程中存在很大的不确定性。

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This change of upper magnitude limit makes seismic hazard reduced, which is useful for project with one hundred years utilization limit.

震级上限的改进，使得地震危险性降低，这对百年使用年限的工程更具有实用性。

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Through its regulation of the private investment firms among which personal account investors can choose, the government can limit and control the risks workers can take on with their personal accounts, preventing moral hazard from the guarantee.

FORBES: A Personal Account Option For Social Security