The process used in the new experiment is "quite inefficient, " Shoukhrat Mitalipov of the Oregon National Primate Research Center in Portland told reporters Wednesday.
波特兰市的俄勒冈国家灵长类研究中心的米塔李波夫（Shoukhrat Mitalipov）星期三对记者说，新试验使用的方法效能非常低下。
Then, the inefficient design and calculation workload shortcomings have been analyzed by the research on the traditional plan and design method of the turf sprinkler irrigation system.
然后，通过对传统的草坪喷灌系统规划设计方法的研究，得出传统的规划设计方法存在着设计效率低，计算工作量大等缺点。
Some research papers have been published. However, most of these papers used relatively simple bridge models and adopted analytical solution or inefficient numerical method to get stochastic response.
目前对此虽然已经有较多研究成果发表，但多数以简支桥梁为研究对象，采用效率不高的数值方法或者解析方法求解随机响应，分析过程中普遍采用模态叠加法。
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