重锤式拖网取样器是对现行常规拖网的技术改进。
Hammer dredge is a technical improvement of the existing dredge sampler.
拖网的定义是一张网沿著河底或湖底拖拉，以起可能停留在那里的任何东西。
The definition of a dragnet is a net that is pulled along the bottom of a river or lake to bring up anything that may lie there.
本文应用动力相似原理，研究设计了塞拉里昂渔场双支架虾拖网的试验小网，用来判断渔场资源和中心渔场。
According to the principle of dynamic analogy, the try net used for double - rig shrimp trawling on Sierra Leone fishing ground is studied and designed in this paper.
在因吉利海峡西部，多佛比目鱼正在被一种光波拖网的毁灭式捕鱼方法捕捉。爱尔兰海以及爱尔兰西南部和西部曾被列为鱼的避难所。
Dover sole caught by the destructive method of beam trawling in the western English Channel, the Irish Sea and south-west and west Ireland has been listed as a fish to avoid.
为了一艘在北大西洋失踪的拖网渔船，已经开始了一项大的营救行动。
A big rescue operation has been launched for a trawler missing in the North Atlantic.
她会步行到海滩去看夜间工作的渔民在浅水中拖网捕鱼。
She would walk on to the beach and watch the night fishermen trawl the shallow waters.
以阿拉斯加流浪者号为例，这艘长达56米的拖网渔船于2008年沉没在白令海。
Take the case of the Alaska Ranger, a 184-foot trawler that sank in the Bering Sea in 2008.
一位在日本海域捕鱼的中国拖网渔船可以帮助弄清两个重要信息。
A Chinese trawlerman for fishing in Japanese waters could help clarify two important messages.
这一组件采用液压驱动的摆动网杆带动拖网，结构简单，动作可靠。
The component has simple structure and reliable motion by using hydraulically powered swinging townet rods to drive the townet.
拖网作业则可捕到200米甚至更深处的鳕鱼。
包括美国、英国、巴西、澳大利亚和新西兰在内的国家都要求在全球公海海域暂停海底拖网捕捞。
America, Britain, Brazil, Australia and New Zealand were among those who wanted a moratorium on the practice of "bottom-trawling" in international waters.
有些地区对海洋底层生物掠夺性捕捞的破坏性底层拖网式捕捞事实上是允许的。
In some, a destructive fishing practice called bottom trawling, which scours life from the ocean floor, is permitted.
太让人震惊了，他们看到大批的拖网渔船非法进入这一海域”，桑德拉说。
They saw a large number of fishing trawlers entering the zone illegally, " Bessudo said.
该报告估计，3500万渔民和2000万船只正在世界各水域忙着拖网作业，渔业养活大约百分之八的全球人口。
The report estimates that 35 million fishers and 20 million boats are actively trawling the world's waters, with fisheries supporting about 8 percent of the global population.
从2009年起，这个限额一直在精简，以致于全部限额(今年第一个捕鱼季捕捞限额为410万吨)由全国一千六百艘登记有案的拖网渔船瓜分。
Since 2009 this has been refined so that the overall quota (set at 4.1m tonnes this year for the first of the two fishing seasons) is divided up among the country's 1, 600 registered trawlers.
从2009年起，这个限额一直在精简，以致于全部限额(今年第一个捕鱼季捕捞限额为410万吨)由全国一千六百艘登记有案的拖网渔船瓜分。
Since 2009 this has been refined so that the overall quota (set at 4.1m tonnes this year for the first of the two fishing seasons) is divided up among the country's 1,600 registered trawlers.
这位41岁的船长在被日本拘留了18天后终于回国，被拘留的原因是他的拖网船和日本巡逻船在一块中日双方均宣布拥有主权的礁石岛附近相撞。
Rather, the captain, 41, had returned from 18 days in detention in Japan after his trawler collided with Japanese Coast Guard boats patrolling waters near rocky isles claimed by both China and Japan.
她相信大多数国家在计划暂停拖网之前都不会同意自我监督的政策。
Most states would not have agreed to the regime of self-policing unless they planned to comply, she believes.
由于深海拖网捕捞是最近才出现的，所以它造成的损害目前还是有限的。
Because deep sea trawling is a recent phenomenon, the damage that has been done is still limited.
国王鲑鱼被巨大的鳕鱼拖网抓住，渔夫计算死掉的国王鲑鱼数量，其中大多都被丢回海中，有些则捐给穷人。
King salmon get caught in the huge pollock trawl nets, and the dead Kings are counted and most are thrown back into the ocean. Some are donated to the needy.
有些是养鱼场基因改造的鱼，其余的则是嘴被钩住或是被巨大的拖网渔船网住，拖网渔船所过之处一路捕杀。
Some are genetically engineered on fish farms, while the rest are hooked by the mouth or netted by huge trawlers that catch and kill everything in their path.
拖网捕鱼是最被广泛使用的捕捞方式。
但是当进入热带雨林后，我们很容易就能发现新种类的昆虫；进入深海区域洒下一张拖网，你捕获的生物有90％是未被发现过的物种。
But when you go to a tropical rainforest, it's easy to find new insects, and when you go to the deep sea and pull up a trawl, 90% of what you get can be undiscovered species.
“如果海底一片荒凉，那拖网也就无关紧要了，”他说道，“然而我们每到一处，都发现了一片生命的乐园。”
“If the bottom of the sea was a desert, then trawling wouldn't be a problem,” he says. “But everywhere we go, we see luxuriant life.
事实上拖网捕鱼就像是彻底砍伐树木，从实用角度讲，这种栖息环境的破坏促使世界范围的鱼群缩小。
Indeed, trawling has been compared to clear-cutting trees. Moreover, from a practical point of view, this destruction of habitat contributes to the dwindling of fish stocks worldwide.
我不认为这有可能进一步提高达尔文及其著作拥有的名望，不过，还是拖网作业式地从头到尾把很多很多的书信和笔记簿翻了一遍，德斯蒙德和摩尔正好就是那么做的。
I wouldn't have thought it possible to further elevate the standing Darwin and his work have, but by trawling through reams of correspondence and notebooks, Desmond and Moore have done just that.
当1892年发明的网板拖网被安装上时，它使捕鱼者能够拖动六倍于被帆船捕捉的捕获物。
When fitted with an otter trawl, invented in 1892, it enabled fishermen to haul in six times the catch of a sailing ship.
由于这种情报工作的结果，船队中包手希腊货船“太阳号”，土耳其商船“卡拉沟号”，西班牙拖网渔船“阿诺号”成为海盗的目标。
Vessels targeted as a result of this kind of intelligence included the Greek cargo ship Titan, the Turkish merchant ship Karagol and the Spanish trawler Felipe Ruano.
由于这种情报工作的结果，船队中包手希腊货船“太阳号”，土耳其商船“卡拉沟号”，西班牙拖网渔船“阿诺号”成为海盗的目标。
Vessels targeted as a result of this kind of intelligence included the Greek cargo ship Titan, the Turkish merchant ship Karagol and the Spanish trawler Felipe Ruano.
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