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对拖作业 [duì tuō zuò yè]
two-boat trawling
[水产] pair trawling
[水产] pair trawling
- 本文的目的是通过对桁杆拖虾网的力学计算，对桁杆拖虾作业作进一步的分析。
The purpose of this Master thesis is to further analysis fishing operation by mechanics calculation of beam shrimp trawl. - 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。
In order to understand the effect degrees produced by different factors on the fishing capacity of otter trawl , we employed 12 factors in factor analysis. - 基于风、流对船舶航行的影响，将拖轮与被拖船舶的宽度之和作为船宽，对拖带作业所需的航道宽度进行了计算。
based on the impact on navigation of wind and current, the width of tugboat and towed-ship is made the ship's width, and then calculate the towing width of the channel.
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