Design process of an engineering structure is an iterative modification process.
工程结构的设计过程是一个反复修改的迭代过程。
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Review of the results will be performed by a Design engineer and decisions regarding modification to standard load group loadings will be determined by the PSG Engineering Director.
Adoption of second version of generalized design of small scale urea plant issued by China Wuhuan chemical engineering Corp. in Ninyang fertilizer plant and minor modification on it are introduced.