In the structural stability analysis, random number are used to simulate the errors in erection of the structure, which can make the calculation much more close to the real structures.

在缺陷结构的稳定性分析中，用随机数模拟结构安装偏差，使计算分析更接近于工程实际。

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The monitor system used in erection of oilfield oil transportation pipeline against leaks can ensure the safe operation of the pipeline, has obvious economic returns and social benefits.

在油田输油管道安装泄漏监测系统可以确保管道安全运行，具有明显的经济效益和社会效益。

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Some guys have all the luck and are naturally blessed with the uncanny ability to maintain an erection in front of a crowd and cameras until they're directed to "pop" on command.

有些人天赋异禀，有能力在人群，在摄影机前收放自如。

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"People are not objecting to dignified commemoration of historic events or indeed the respectful display of flags and emblems, but many people and those include people with relatives that were volunteers in the 36th Ulster Division during World War One, perceive the erection of flags without consultation and in some cases with masked identity to be intimidating and bad for community relations, " he added.

BBC: UVF flag

Whatever the cause, this "urbanization of poverty" has resulted in the large-scale erection of primitive forms of shelter, either on public land or on private land owned by absentee landlords.

FORBES: Magazine Article

Alliance Party assembly member, Chris Lyttle, said he had been contacted by residents in east Belfast who were angry at the erection of the flags "along key arterial routes, without consultation or notification".

BBC: UVF flag