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- The horizontal expansion of bottom otter trawl, especially the wingtip expansion, is one of the most important parameters affecting capture efficiency. 摘要底层单拖网的翼端间距是影响拖网系统捕捞效率的重要技术参数。
- bottom otter trawl 底层单拖网
- When fitted with an otter trawl, invented in 1892, it enabled fishermen to haul in six times the catch of a sailing ship. 人们早就被告知，北海的鱼已被捕尽，北大西洋最接近欧洲部分的水域现在产量仅是四十年代的一小部分。
- 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. 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。
- Also called twin otter trawl. 也被称为对单船拖网。
- Factor analysis of the fishing capacity of otter trawl in Middle Fujian Region 闽中地区单拖作业捕捞能力的因子分析
- A study on the optimal number of fishing boats invested for Fujian otter trawl industry 福建省单拖作业最佳船数投入量的探讨
- They sent the enemy ship to the bottom of the sea. 他们把敌舰击沉。
- My jacket is made of otter skins. 我的皮夹克是用水獭皮做的。
- The child was sitting on the bottom stair. 那孩子正坐在楼梯最下面的一级上。
- I intend to get to the bottom of it. 这件事我打算寻根究底。
- He was always bottom of the class in maths. 他的数学成绩在班上总是垫底。
- The dregs have settled at the bottom of the bottle. 渣滓都沉到瓶底了。
- I fell right to the bottom of the stairs. 我从楼梯上一直摔到楼梯下面。
- The police found a body at the bottom of the lake. 警方在湖底发现了一具尸体。
- His bottom waggle in a funny way when he walk. 他走路时臀部扭来扭去，很可笑。
- The bottom of the boat was rusty. 船底生锈了。
- There is a pair of scissors in the bottom drawer. 最底下的抽屉里有把剪刀。
- Prices have reached rock bottom. 价格已经到了最低点。
- Every indication show market get near bottom now. 所有迹象表明，目前市场价格已跌落低谷。
