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家蚕
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  silkworm (
     The effect of feeding mulberry leaves with different moisture contents on the 5th instar bivoltine silkworm (CSR3×CSR6) was studied.
     研究了取食不同水分含量桑叶对二化性家蚕 (CSR3×CSR6 ) 5龄幼虫的影响。
短句来源
     Studies on optimum pH values of artificial diet at different developmental stages of silkworm ( Bombyx mori )
     家蚕(Bombyx mori)不同发育阶段饲料适宜pH值的研究
短句来源
     The expression of small heat-shock gene Bmhsp19.9 of silkworm (Bombyx mori) was analyzed by RT-PCR.
     利用RT-PCR技术,对家蚕(Bombyxmori)低分子量热激蛋白Bmhsp19.9基因进行了定量表达分析。
短句来源
     To study the sensitivity ofhemopoietic organ of the silkworm(Bombyx mori)to heavy ion beams,hemopoietic organs of the larvae were locally irradiated with carbon-ion beams(~(12)C~(5+)),and the changes in the hemocyte density were investigated.
     为了研究造血器官对重离子射线的感受性,研究了碳离子射线(~(12)C~(5+))局部照射家蚕(Bombyx mori)幼虫的造血器官后血液中的血球密度的变化。
短句来源
     Cloning triosephoshpate isomerase (Tpi) of the silkworm (Bombyx mori) by selecting EST database
     利用EST数据库资源克隆家蚕(Bombyx mori)磷酸甘油醛异构酶基因
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  “家蚕(”译为未确定词的双语例句
     The contents of protein and fat in the dry powder from the 24-hour pupae of silkworm, Bombyx mori L are 52.5% and 31.8%, respectively.
     24 h蛹龄家蚕(Bombyx mori)蛹干粉中,蛋白质和脂肪含量分别为52.5%和31.8%;
短句来源
     The protein from silkwormpupa (silkworm of Bombyxmori L.)
     蚕蛹(Silkwormpupa)是家蚕(Bombyxmori L.)
短句来源
     The restriction map is obviously different from the rDNA of silkworm Bombyx mori.
     这与家蚕(Bombyx mori)的rDNA是不同的。
短句来源
     ECDYSONE 20 MONOOXYGENASE ACTIVITY IN THE PROTHORACIC GLANDS OF LAST INSTAR LARVAE OF BOMBYX MORI
     家蚕(Bombyx mori)末龄幼虫前胸腺内蜕皮素20-单氧酶活性(英文)
短句来源
     The result shows that the content of adhesive proteins adheredto the eggs of Actias selene Hubner 1.11mg/egg is much more than Bormbyx mori 0.037mg/eggand nearly same to Antherea pernyi.
     结果表明:柳蚕卵表面胶着物质含量为1.11mg/卵,比家蚕(0.037mg/卵)多,与柞蚕大致相同,三种蚕的粘液腺形状大小存在差别。
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  相似匹配句对
     The silkworm,Bombyx mori(L.)
     家蚕Bombyxmori(L.)
短句来源
     The Chromatin Genetic Eng-ineering For Silkworm. Bombyx mori L. Sci. Seric.
     家蚕染色质遗传工程
短句来源
     A GENOMIC LIBRARY OF SILKWORM BOMBYXMORI
     家蚕的基因文库
短句来源
     The protein from silkwormpupa (silkworm of Bombyxmori L.)
     蚕蛹(Silkwormpupa)是家蚕(Bombyxmori L.)
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  silkworm (
Purification and properties of alkaline phosphatase of silkworm Bombyx mori
      
Alkaline phosphatase (AKP), from the succus entericus of silkworm, was purified using 10%-50% ammonium sulfate fractions, ion exchange chromatography of DEAE-Sepharose, and size exclusion chromatography of Sephacryl S-200.
      
We primarily conclude that mercapto and imidazole are essential for AKP from silkworm.
      
Proteolytic enzymes as markers of productivity and heterosis of silkworm
      
A positive correlation between the activity level of cysteine proteinases in developing eggs of common silkworm moth (Bombyx mori L.), on the one hand, and a set of commercial characteristics, on the other, was found.
      
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The present paper reports on the results of some preliminary observationson the insect parasites of the pine caterpillar, carried out in the Nanking dis-trict during 1936-37. (1) The following insect parasites were reared from various stages of thepine caterpillar: Egg parasites: Trichogramma evanescens Westwood, Telenomus dendrolimusiChu, Anastatus gastropachae Ashmead. Larva parasites: Casinaria dendrolimi Uchida, Rhogas spectabilis (Matsumura),Stenaraeoides octocinctus (Ashmead), Itoplectis nigribasalis Uchida,...

The present paper reports on the results of some preliminary observationson the insect parasites of the pine caterpillar, carried out in the Nanking dis-trict during 1936-37. (1) The following insect parasites were reared from various stages of thepine caterpillar: Egg parasites: Trichogramma evanescens Westwood, Telenomus dendrolimusiChu, Anastatus gastropachae Ashmead. Larva parasites: Casinaria dendrolimi Uchida, Rhogas spectabilis (Matsumura),Stenaraeoides octocinctus (Ashmead), Itoplectis nigribasalis Uchida, Tricholygasorbillans Wied., Sturmia sp., Carcelia sp. Pupal parasites: Xanthopimpla japonica Krieger, Pimpla disparis Viereck,Brachymaria obscurata (Walker), Brachymeria fiskei Crawford. Hyperparasites: Phygadeuon latipatiolator Uchida, Monodontomerus dentipes(Boheman), Brachymeria obscurata (Walker), Brachymeria fishei Crawford, Eury-toma sp. (2) The egg parasites played an important part in the natural control ofthe pine caterpillar. The percentage of parasitism reached 61% in the materialcollected at Tang-shan, 1936. Telenomus dendrolimusi and Anastatus gastropachaewere observed to be more important than Trichogramma evanescens. (3) As high as 26% of the early-instar larvae could be killed by the para-sites. The percentage of larval parasitism and the relative value of the severalparasites varied with the time at which host material was collected. A differ-ence of a few days would give entirely different results. (4) The late-instar larvae were attacked by three species of dipterousparasites. The highest percentage of parasitism observed was 42%. (5) 38.4% of the pine caterpillar were killed during their pre-papal andpupal stage chiefly by Sturmia sp. and Xanthopimpla japonica Krieger. (6) The percentage of parasitism whether in the egg, larva or pupa stagewere observed to be always higher in the second generation than in the first,a fact suggests that hibernation may have an important bearing upon thepopulation of the parasites. (7) The time of appearance of the more important parasites and theirhabits were discussed. (8) Some of the factors, such as hyperparasitism, non-synchronization ofthe life cycles of the host and parasite, over-restriction in host selection, andthe influence of certain control measures, which have adverse effects on theparasite populations, were discussed. (9) As the percentage of parasitisn fluctuated greatly with year and season,it, is, therefore, suggested that a study of the factors which are responsible forthese fluctuations is of primary importance. Based on the results of suchstudies, measures may be adopted to increase the efficiency of the parasites.

1936—37年在南京地区观察松毛虫寄生天敌所得的初步结果可简述如下: (一)南京地区业经发现的松毛虫天敌有卵寄生蜂3种:赤眼卵蜂、松毛虫长腹卵蜂、平腹小蜂;幼虫寄生蜂4种:松毛虫瘦姬蜂、松与虫红头小茧蜂、花胸姬蜂、黑基瘤姬蜂;幼虫寄生蝇3种:家蚕寄生蝇、大寄生蝇、小寄生蝇;蛹寄生蜂4种;日本黑点姬蜂、黑瘤姬蜂、大腿蜂、费氏大腿蜂;另重寄生8种。 (二)卵寄生蜂在防治松毛虫上起了适当大的作用,有时减低寄主虫口达61.24%。3种寄生蜂中以松与虫长腹卵蜂及平腹小峰为较重要。 (三)松毛虫初龄幼虫寄生率最高时可达26%。寄生率的高低及各种天敌的比较重要性与采集寄主材料的时期有密切的关系,往往数日之差,寄生率可截然不同。 (四)松与虫的后龄幼虫遭3种寄生蝇的寄生。寄生率最高可达42%。 (五)松毛虫茧期的寄生率可达38.4%,天敌中以大寄生蝇及日本黑点姬蜂为 最主要。 (六)无论在卵期、幼虫期或蛹期,第2化松毛虫的寄生率均比第1化的为高。此点似说明越冬问题是松毛虫天敌繁殖中的一个关系问题。 (七)几种比较重要的寄生天敌的发生时期和生活习性,本文中根据观察所及,加以记载。 (八)本文中将几个影响松毛虫寄生...

1936—37年在南京地区观察松毛虫寄生天敌所得的初步结果可简述如下: (一)南京地区业经发现的松毛虫天敌有卵寄生蜂3种:赤眼卵蜂、松毛虫长腹卵蜂、平腹小蜂;幼虫寄生蜂4种:松毛虫瘦姬蜂、松与虫红头小茧蜂、花胸姬蜂、黑基瘤姬蜂;幼虫寄生蝇3种:家蚕寄生蝇、大寄生蝇、小寄生蝇;蛹寄生蜂4种;日本黑点姬蜂、黑瘤姬蜂、大腿蜂、费氏大腿蜂;另重寄生8种。 (二)卵寄生蜂在防治松毛虫上起了适当大的作用,有时减低寄主虫口达61.24%。3种寄生蜂中以松与虫长腹卵蜂及平腹小峰为较重要。 (三)松毛虫初龄幼虫寄生率最高时可达26%。寄生率的高低及各种天敌的比较重要性与采集寄主材料的时期有密切的关系,往往数日之差,寄生率可截然不同。 (四)松与虫的后龄幼虫遭3种寄生蝇的寄生。寄生率最高可达42%。 (五)松毛虫茧期的寄生率可达38.4%,天敌中以大寄生蝇及日本黑点姬蜂为 最主要。 (六)无论在卵期、幼虫期或蛹期,第2化松毛虫的寄生率均比第1化的为高。此点似说明越冬问题是松毛虫天敌繁殖中的一个关系问题。 (七)几种比较重要的寄生天敌的发生时期和生活习性,本文中根据观察所及,加以记载。 (八)本文中将几个影响松毛虫寄生天敌虫口的因子提出讨论,这些因子包括;重寄生的严重、天敌发生时期与寄主生活史的不相

The willow worm, Actias selene Hubner, belongs to the Saturinudae. The worms live outdoor on trees—most frequently on willows. However, they are perfectly fit to indoor conditions. On account of their strong vitality, the breeding of the worms presents almost no difficulty. Our preliminary breeding of the worms shows that under ordinary conditions and feeding with willow leaves they grow very well. In a better case it only takes 24 days from their larvas to cocoon. They breed three generations in one year, and...

The willow worm, Actias selene Hubner, belongs to the Saturinudae. The worms live outdoor on trees—most frequently on willows. However, they are perfectly fit to indoor conditions. On account of their strong vitality, the breeding of the worms presents almost no difficulty. Our preliminary breeding of the worms shows that under ordinary conditions and feeding with willow leaves they grow very well. In a better case it only takes 24 days from their larvas to cocoon. They breed three generations in one year, and their pupas survive in winter. Willow worms are heavier than ordinary domestic silkworms. A well-developed willow worm weighs over 10 grams and is 7-8 cm. in length. With a green colour, its body is scattered with tumors and full of hairs on their tips. The silk of willow worms presents a light-coffee colour and a shining lustre. As compared with that of domestic worms, it is somewhat thicker, while their tensile strength and elongation are nearly similar. Out of one cocoon a silk thread of about 350 meters in length may be obstained. It has the potentiality of being developed into a textile raw-material.

这篇报告是介绍一种野生蚕——柳蚕和柳蚕丝初步试验的情况。柳蚕在上海一带常见,许多地区也有分布。我们为了探求对它的利用,曾把它移放在室内饲养,发现生长良好,饲养方便。从蟻蚕到结茧,快的24天,就能结茧。一年中一般有三个世代,以蛹越冬。蚕身为绿色,体重比家蚕大,成熟的蚕儿有10克多重,身长达7~8公分。身上有瘤状突起,突起顶端长有刚毛。吐丝呈浅咖啡色,具有光泽,强力和延伸与家蚕丝相仿,但比家蚕丝略粗。柳蚕的特点是:生活力强;吃柳树叶(湿叶也无影响);虽系野生,但能在室内饲养;茧子又可以繅出成缕的丝达350公尺,是天然丝的一种资源。因此它可能具有重大的国民经济意义。

Several decisive experiments have proved that the development of eggs in lepidop-terous insects does not need the presence of corpora allata. However, it is worthy tonote that the lepidopterous insects so far used are species which are unable to feed inthe adult stage and whose eggs are already ripened during the pupal development. Wedoubted whether this conclusion can be applied to all lepidopterous insects. In order tosolve this problem, experiments were performed on the armyworm, the adult of whichrequires...

Several decisive experiments have proved that the development of eggs in lepidop-terous insects does not need the presence of corpora allata. However, it is worthy tonote that the lepidopterous insects so far used are species which are unable to feed inthe adult stage and whose eggs are already ripened during the pupal development. Wedoubted whether this conclusion can be applied to all lepidopterous insects. In order tosolve this problem, experiments were performed on the armyworm, the adult of whichrequires to feed on honeydew or nectar as the supplementary nutrients to ripe theireggs. The development of eggs in the adult ovarioles may be divided into three stages; i.transparent opalescent stage; ii. yolk deposition stage, iii. mature stage. The whole pro-cess was completed in a period of 5 days. Gross anatomical observation showed thatthere was a rough correlation between the secretory activity of the corpora allata and thevitellinogenesis of the eggs (Fig. 5). In the decapitated female moths which had previously well fed on honey afteremergence, the eggs showed no sign of further development in the first 5 days. Whenthe brains or the corpora allata-corpora cardiaca complexes were implanted into theabdomens of these decapitated females, it was found that only the eggs of the recipientswhich had received a pair of corpor allata from the well-fed male and female adultshad developed to the stage iii, while those of the recipients which received the brainsor corpor cardiaca were unable to develop. Therefore, it is concluded that egg maturationin the armyworm is under the hormonal control of the adult corpora allata. It was alsoseen that the volume of the corpora allata in males increased continuously during theadult life-span, but their function in relation to sexual activity remained obscure in ourexperiments.

内分泌控制昆虫卵巢的发育与成熟已为大家所承认;特别是在直翅目、半翅目、鞘翅目、革翅目、双翅目等昆虫中卵巢的发育已证实由内分泌中心之一——咽侧体所调节。但在某些鳞翅目昆虫中所得的试验结果与上述结论不一致,它们的卵巢发育似与咽侧体激素无关;这一事实已有分别用家蚕、天蚕蛾、蓖麻蚕等昆虫为材料的试验结果证明。我们分析了这些资料,发现这些昆虫的卵巢皆在蛹期发育成熟,成虫期均不取食。而在有些鳞翅目昆虫如粘虫等中,它们的卵巢需要在成虫期获得补充营养后方能成熟,我们怀疑粘虫卵巢发育成熟与内分泌的关系可能与上述几种昆虫不一样。 本试验用移植和结扎的方法证明了:(1)粘虫雌蛾卵粒中卵黄的沉积与咽侧体体积的变化相关,交配后咽侧体体积增大时卵黄沉积最快;(2)粘虫卵巢的发育与成熟是受咽侧体激素的控制,而与脑无直接关系;(3)激素控制粘虫卵巢发育与成熟的临界期为羽化取食后24小时;(4)粘虫成虫期雌雄两性咽侧体的体积均有明显变化,雄性的比雌性的大1—3倍。 因此,通过本工作说明了在鳞翅目昆虫中,由于生殖腺在蛹期或成虫期发育的不同,在生殖腺发育的内分泌控制机制上也有差别。

 
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