Different from mammals, the early embryos of fish can not be preserved for the long period at the very low temperature ( - 196 ). therefore, three methods were usually applied to cryogenic preservation of the fine and rare species of fish : 1 ) perserving fish spermatozoon in cryogenic condition. researchers have had systematically studied on this technique for many years, and this technique has been utilized in application and made a lot of effects ; 2 ) combining with the techniques of cell engineering ( nuclear transplantation and electric fusion etc. ), and through the process of culturing histiocyte of fish, cryopreservation and re - culture after thawing, carrying out somatic cell breeding of fish. the past studies showed that the nucleolus of somatic cells of fish have totipotency
多年來,國內外學者對各
種魚類精液的冷凍保存進行了大量的系統研究,目前這項技術已達到實用水平,並日益發揮作用;二是對
魚類培養的組織細胞冷凍保存,通過
魚類細胞的培養、超低溫凍存、解凍后再培養過程,結合細胞工程技術(如核移植、電融合等)進行體細胞育
種;大量的研究結果表明
魚類體細胞核具有發育的全能性,隨著細胞培養技術、細胞工程技術日益發展成熟,完全具備實現
魚類物
種種質長期保存的理論基礎和技術條件。
The context in this paper includes the tactical demand of modern torpedo homing system, the advanced algrithm, the application of dsp in torpedo homing system outside country and the basic algrithm of homing signal processing. the basic structure of dsp signal processing procedure, homing and its algorithm assembly flow chart is also introduced in this thesis
本文介紹了現代
魚雷自導戰術要求、先進演算法及國內外dsp在
魚雷自導中的應用現狀;闡述了
魚雷信號處理的基本演算法;並對dsp的結構及其應用作了詳細的說明;還介紹了各dsp信號處理模塊的基本結構、自導流程圖及某
種魚雷自導演算法的流程。
The theoretical calculation method about how to predict the hydrodynamic characteristics of ichthyoid rudder is proposed in this paper
本文提出了一
種魚形舵定常升力的水動力性能預報的理論預報方法。
The juliett - class torpedo has an acoustic guidance system
這
種魚雷是以聲音作為導向系統的
The state offers a huge variety of fish, from largemouth bass to sailfish
佛羅里達州出產非常多
種魚類,從闊嘴黑鱸到旗
魚等不一而足。
You are aware what huge whitings are served to us on maigre days. well, i selected the cartilages of the heads of these fishes, and you can scarcely imagine the delight with which i welcomed the arrival of each wednesday, friday, and saturday, as affording me the means of increasing my stock of pens ; for i will freely confess that my historical labors have been my greatest solace and relief
你知道,我們每逢齋戒日都可以吃到
魚的。我就選用了這
種魚頭部的幾條軟骨,你簡直想象不到每到星期三,星期五和星期六我是多麼的高興,多麼的歡迎它的到來,來更多的為我提供做筆的材料,因為我坦白地承認,我的這本歷史著作是我最大的安慰,當我追述過去的時候,我就忘掉了現在。
American food and medicaments management board once also announced 4 kinds of fish this year in january ( fish of head of shark, horse, dorado and majia fish ) mercuric content is exorbitant, knife of head of the tuna that this report suggests pregnant woman should reduce edible can again, ghost, cod reachs narrow cod, because the mercuric content of this kind of potted fish is very high also, edible also answer with mensal in the limit of
美國食品及藥物治理局今年1月也曾經公布4
種魚類(鯊
魚、馬頭
魚、劍
魚及馬加
魚)水銀含量過高,該報告又建議孕婦應減少食用罐頭的金槍
魚、鬼頭刀、鱈
魚及狹鱈
魚,因為這類罐頭
魚的水銀含量也很高,食用也應以每月一次為限。
The industry of aquatic farming includes ten farming plants, the main products : scallop, laminaria, oyster, trepang, abalone, sea urchins etc. the annual output value of laminaria reachs to 5000 ton, scallop reachs to 20000 ton, has a nurturing factory of integral facilities, a fish - farming plant with net box, has nurtured all kinds of childish scallop, ostracean, fish, used to the farming plants of our company and other companies, the main sorts of fish - farming with net box : flounder, yellow - fish, black - fish, weever, large edge flounder, mainly selling to japan
噸。有設施配套的水產育苗廠和網箱養
魚,培育出的各
種扇貝苗牡蠣苗魁蚶苗及各
種魚苗,供全公司養殖場及沿海各養殖場使用。網箱養
魚的
種類有:牙鮃
魚黃
魚黑
魚鱸
魚大棱鮃
魚,主要銷往日本。
And a piranha ' s a fish, just like your present
食人
魚也是一
種魚就像你的生日禮物一樣
" oh, do not give me credit for this, madame ; it was done by the romans, who much esteemed them, and pliny relates that they sent slaves from ostia to rome, who carried on their heads fish which he calls the mulus, and which, from the description, must probably be the goldfish
「噢,可別給我加上那
種榮譽,夫人。這
種事在羅馬人眼裡是很普通的。普林尼普林尼六二一一三,羅馬作家譯注的書上曾說過,他們常常派奴隸頭頂著活
魚從奧斯蒂亞運到羅馬,他們把那
種魚叫作墨露斯,從他的描寫上來判斷,大概就是鯛
魚。
Various kinds of fish are being bred in the reservoir.
水庫里放養了許多
種魚。
We could see fishes under the water.
我們看見水面下有各種魚。