otter trawl短语¹⁴⁴⁹⁷²⁺² 基本例句 网板拖网 In order to understand the effect degrees produced by different factors on the fishing capacity of otter trawl, we employed12 factors in factor analysis. 为了了解各因子对单拖作业捕捞能力发挥的影响程度，本文选择影响单拖捕捞能力发挥的12个因子指标，采用因子分析法对其进行分析。 cnki