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The background survey and tracking survey of artificial reef area in Chenghai Laiwu were carried out before and after reefing in 2003 and 2007, respectively. The results indicated that after the deployment of artificial reefs, the biomass density of fishery resources increased by 25.63 times, which were much higher than before. The resources species was much more abundant; total number increased from 23 to 41, which increased by 0.78 times. The crab resources sharply increased by 1.75 times after artificial reef were deployed. Harpodon nehereus and Portunus sanguinolentus , which did not appeared in background survey, now became the dominant species in tracking survey. There were high diversity indexes in artificial reefs area and control area in tracking survey. In conclusion, the results indicated that the fish-aggregating effect of artificial reef site has improved a lot, and the community structure and the habitat environment have been significantly improved.

摘 要:2003和2007年分别对澄海莱芜人工鱼礁区进行了投礁前的本底调查和投礁后的跟踪调查,结果表明,投礁后礁区海域游泳生物的资源密度明显比投礁前高,增加了25.63倍;礁区海域各类资源种类均比投礁前丰富,总种数由投礁前的23种增加至41种,比投礁前增加了0.78倍,其中,蟹类种数增加最多,增加了1.75倍;在本底调查中没有出现的经济种类龙头鱼 Harpodon nehereus 和红星梭子蟹 Portunus sanguinolentus 在跟踪调查中已成为主要优势种;Shannon-Wienver多样性指数在礁区和对比区均比投礁前有所增加。

Songhai in his speech to welcome the International Cooperation Bank of deep inspection and acceptance Shenzhen recommended financing projects.

宋海在讲话中欢迎国际协力银行来深考察和接纳深圳市所推荐的融资项目。

The mission saw several landmarks in the history of the Chinese navy, said Rear Admiral Du Jingchen, commander of the fleet. It is the first time for the naval vessels, shipboard planes and Special Forces to combine together for a non-warfare mission. It is also the first time for the Chinese navy to cooperate with international navies for the same mission on the same waters.

据编队指挥员杜景臣少将称,在过去4个月的护航过程中,海军舰队开创了海军史上多项第一,如第一次组织水面舰艇、舰载机和特战队员多兵种跨洋执行非战事行动,以及第一次与多国海军在同一海域执行任务。

The course of her father's Alzheimer's disease is central to this narrative.

过程中她父亲的阿尔茨海默氏症是这方面的核心叙事。

During an average six years of follow-up, 33 people developed Alzheimer's disease.

在这个平均为6年的随访中,33人发展为阿尔茨海默病。

Antheridium formation was not promoted when young gametophytes of C. podophylla were treated with their own mature gametophytes or those of Pteridium aquilinum Kuhn, Lygodium japonicum Sw., or Ceratopteris thalictroides Brongn. Their spores did not germinate at all in dark conditions. These results indicate that there is no antheridiogen (and possibly no germinin, either) in this species.

鬼桫椤之幼配子体并未受到蕨、海金沙、水蕨及其本种之成熟配子体影响而促进其藏精器的产生,其孢子亦未在所有处理之黑暗环境中发芽,此结果显示本种不产生促精素。

Research is focused on the composition and quantitative variation of heterotrophic bacteria attached on the surface of cuprous oxide antifouling paint.

研究了浸海氧化亚铜防污漆表面粘膜中异养细菌的组成和数量变动情况。

Arnheim think that Not until film began to become an art was the interest moved from mere subject matter to aspects of form.

在阿恩海姆美学思想中,其电影艺术论是比较有特色的。

It is based on an ideal, existentialism, from German philosopher, Martin Heidegger. The musical materials of the composition are inspired by the musical languages between the western tonality and atonality at the end of 19th and begin of 20th century.

主要是以德国哲学家海德格之「存在主义」为理念出发,结合十九世纪末二十世纪初,西方音乐中调性与非调性之间,新旧交迭所产生的和声语法为题材创作。

Banca Intesa acted as the financial adviser to CSPC and the Sponsors.?

意大利联合商业银行担任中海壳牌和发起人的财务顾问。

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推荐网络例句

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。