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  be distributed
     The U~6+/U~4+ ratio ranges from 0.266 to 1.116 with the average value of 0.761. Uranium may be distributed in all grain size fractions,but it is concentrated in the fraction of 0.1~0.25 mm,accounting for 27.89%~76.98%(in average 46.55%) of the total uranium in ore.
     U6+/U4+比值为0.266~1.116,平均为0.761。 铀矿石中铀在各种粒级碎屑中均有分布,但集中分布在0.1~0.25mm粒级中,铀分布率27.89%~76.98%,平均为46.55%。
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     Nano-Fe2O3-Glu was found to be distributed widely in various organs in vivo,and the concentration in liver and spleen was higher than that in other organs,cpmi/cpmj in liver was 48.93%(ID/g) at one hour after injection,the cpm0 in liver was 80.60% of total cpm in mice.
     Fe2O3-Glu纳米颗粒在各主要器官中均有分布,以肝脏、脾脏中分布最多。 其中,1h时肝脏中放射性百分比为48.93%(ID/g),占整体放射性的80.60%。
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     The spatial distribution of the fishing grounds of type Ⅰ,type Ⅱ,and type Ⅲ was between 5°S~5°N、140°E~180°,in which that of type Ⅲ stretched slightly towards the east in the Southern Hemisphere,and it also distributed in 10~5°S、155°~160°E.
     Ⅰ、Ⅱ和Ⅲ类渔场基本上全部分布在5°S~5°N、140°E~180°之间,但Ⅲ类渔场在南半球略往东延伸,在10~5°S、155°~160°E之间也有分布;
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     Adr, adw2, ayr, ayw1, ayw2 and ayw3 subtypes were determined among these carriers.
     adr、adw2、ayr、ayw1、ayw2和ayw3等 6种血清亚型均有分布 ,其中adr和adw2为优势血清亚型 ,分别占6 4.3%和 31.4%。
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     The 5-hydroxytryptamine positive reactive cells are located in the different parts of intestine, most in the anterior segment of fore intestine (24.25number/mm2), less in the posterior segment of hind one (23.56number/mm2), lowest in the middle one (15.51number/mm2).
     5-羟色胺阳性反应细胞前、中、后肠均有分布,其密度前肠前段最高(24.25个细胞/mm2),后肠后段次之(23.56个细胞/mm2),中肠最低(15.51个细胞/mm2)。
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     13 C values are mainly around-5‰with ranges of-2‰~-10‰and-14‰~ 24‰.
     碳同位素组成主要分布在-5‰附近,在-2‰~-10‰变化,并在-14‰~-24‰区段也有分布
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     2. The NGF, BDNF, NT-3, NT-4, GDNF, bFGF, IGF and EGF-likeimmunoreactivities could also be seen in spinal sensory neurons of the adult monkey.
     2.NGF、BDNF、NT-3、NT-4、GDNF、bFGF、IGF和EGF的免疫阳性反应产物在成年猴脊髓背角神经元均有分布
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     Even U* the same, the velocity distribution may presents different profile.
     可以不同形状的流速分布.
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     Colon has a great deal of nerve plexus.
     结肠分布丰富的神经丛。
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     The distribution of fimA genotype in periodontitis patients was detected by PCR.
     GINGIVALIS的分布;
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     Distribution of acceleration of gravity
     重力加速度的分布
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     Mainly includes:
     主要
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  be distributed
At the age range from 15 to 25, though the population tended to be distributed randomly, the distribution was still clumped.
      
To achieve higher utilization, catalyst layer components must be distributed by means of engineered design, which can prevent aggregation.
      
The actual origin is not fixed at any point, but turns out to be distributed over the whole transition zone.
      
The surface of the body and the vortex wake behind it are simulated by systems of discrete vortex sections, but, in contrast to the case of an incompressible medium, it is necessary in this case for the sources to be distributed outside the wing.
      
Thus, SCAR DNA proved to be distributed throughout the genome, irrespective of differences in density and sequence type between isochore families.
      
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The natural vegetation of Shantung Province, in the north temperate zone, is of the aestisilvae type. As the natural conditions vary in different parts of this province, the vegetation may be divided into the following four regions: 1. Alluvial plain of the Yellow River: This region is located at the northern part of this province. The saline soil is unfavorable for the growth of most plants. The following plants are characteristic: Tamarax chinensis, Apocynum venetum, Suaeda salsa, S. glauca, Artemisin capillaris,...

The natural vegetation of Shantung Province, in the north temperate zone, is of the aestisilvae type. As the natural conditions vary in different parts of this province, the vegetation may be divided into the following four regions: 1. Alluvial plain of the Yellow River: This region is located at the northern part of this province. The saline soil is unfavorable for the growth of most plants. The following plants are characteristic: Tamarax chinensis, Apocynum venetum, Suaeda salsa, S. glauca, Artemisin capillaris, Aeluropus littoralis, Miscanthus sinensis, Phragmites karka, Carex sp. etc.. 2.Western Shantung plain: This region is located at the western part of the province. Most of the land is under cultivation and the soil is rich in calcium. There is no forest. The common trees are Populus tomentosa, P. alba P. davidiana, Ulmus spp. etc., and the herbaceous plants are Cynodon dactilon, Digitaria sanguinalis, Echinochloa colonum, Imperata cylindrica, Chenopodium album, Convolvulus chinensis,Xanthium japonicum, Crypi saculeata, Scirpus maritimus etc.. Plants which grow in the lake district largely belong to Phragmites communis, Scirpus maritimus, Zizania latifolia, Euryale ferox, Trapa bispinosa etc.. 3.Central South hilly region: This region has mostly been transformed into farms for a long time. On the hilly region there are still some remnant forests. The important trees are Pinus tabulaeformis, Biota orientalis. Quercus acutissima, Q. variabilis, Betula chinensis, Tilia mongolica etc.. On account of calcareous soil in this region, Biota orientalis is found most extensively. Gramineae leads all other herbaceous plants in abundance. The following species such as Arundinella amomala, Bothriochloa ischaemum, Setaria viridis, Pennisitum flaccidum etc. have a wide distribution. 4. Shantung Peninsula: The common native plants in this region are Pinus densiflora, Quercus dentata, Q. acutissima, Robinia pseudoacacia, Acer mono etc.. Pious densiflora is a native plant which grows all over the hilly region. Herbaceous plants are mostly Thymus serpyllum, Setaria viridis, S. lutescens etc.. Due to the oceanic climate with higher precipitation and humidity, plants enjoy a more vigorous growth than those in other regions. There develops a richer flora, some even with warm temperate elements.

山东省之位置属于温带,植物分布为落葉闊葉林區,但在鲁中南及膠東區爲丘陵地带,落葉闊葉樹乃與針葉樹成混交林澑鶕∧谥匀粭l件,可将植物分布情况列為四區: 1.黃河冲積平原區:位於北部,為黄河三角州地帶,土壤含鹽分甚重,不宜於植物之生長。樹木只有檉柳、茶棵子等;草本以黄鬚菜、鹼蓬、茵陳蒿,獐毛、芒、蘆葦、黑三稜草等最為砇姟?2.魯西平原區:為西部之黄河冲積平原,多為農田,土壤含鈣甚多。區內無森林,常見之樹木有毛白楊、白楊、山楊、榆等?荼居泄费栏ⅠR唐、芒稷、白茅、藜、旋花、蒼耳、隱花草、荆三稜等。湖泊區域多蘆葦、荆三稜、蒲姜草、芡、菱等。3.魯中南區:為丘陵地區,平緩部分已闢為農田。山區有殘留森林,主要樹種為油松、侧柏、麻櫟、栓皮櫟、堅樺、椴等;土壤石灰質,側柏之繁盛為共特點。草本以禾本科為最多,常見的如野古草、白羊草、狗尾草、白草等,此外如細葉莎草、雞眼草、蚊子草等亦為砇姟?4.膠東區:在山東半島部份,主要樹種為赤松、洋槐、麻櫟、五角楓等,赤松自山麓至山上均有分佈,且為其鄉土,此乃本區之特徵;草本以蚊子草、狗尾草、金狗尾草為最多。在海灘地上少有高大樹木,常見樹種如洋槐、旱柳等均為栽培者,野生木本植物有酸棗...

山东省之位置属于温带,植物分布为落葉闊葉林區,但在鲁中南及膠東區爲丘陵地带,落葉闊葉樹乃與針葉樹成混交林澑鶕∧谥匀粭l件,可将植物分布情况列為四區: 1.黃河冲積平原區:位於北部,為黄河三角州地帶,土壤含鹽分甚重,不宜於植物之生長。樹木只有檉柳、茶棵子等;草本以黄鬚菜、鹼蓬、茵陳蒿,獐毛、芒、蘆葦、黑三稜草等最為砇姟?2.魯西平原區:為西部之黄河冲積平原,多為農田,土壤含鈣甚多。區內無森林,常見之樹木有毛白楊、白楊、山楊、榆等?荼居泄费栏ⅠR唐、芒稷、白茅、藜、旋花、蒼耳、隱花草、荆三稜等。湖泊區域多蘆葦、荆三稜、蒲姜草、芡、菱等。3.魯中南區:為丘陵地區,平緩部分已闢為農田。山區有殘留森林,主要樹種為油松、侧柏、麻櫟、栓皮櫟、堅樺、椴等;土壤石灰質,側柏之繁盛為共特點。草本以禾本科為最多,常見的如野古草、白羊草、狗尾草、白草等,此外如細葉莎草、雞眼草、蚊子草等亦為砇姟?4.膠東區:在山東半島部份,主要樹種為赤松、洋槐、麻櫟、五角楓等,赤松自山麓至山上均有分佈,且為其鄉土,此乃本區之特徵;草本以蚊子草、狗尾草、金狗尾草為最多。在海灘地上少有高大樹木,常見樹種如洋槐、旱柳等均為栽培者,野生木本植物有酸棗、舖地胡枝子等;草本植物多蘆葦、狗尾草等。此區氣候由於受篞笳{節,雨量與溼度亦較高,故植物生長較其他三區繁盛,種類亦較多,亞熱带植物之分布亦多於他處,尤以海邊低地為甚。在自然地理上,秦嶺、淮河一線是中國南北氣候和土壤的重要分界線,也是植物的重要分界線。但是從山東的植物分布上,可以知道這條線並不能絕然的将植物分為南北二部分,因為山東仍是一个過渡的地帶,許多南方植物在魯南及膠東沿海都有分佈,如黄檀、山胡椒、烏桖、厚朴、王蘭、木犀、黄楊、谜葉樹等多种。在另一方面,北方植物分佈至山東為其最南界限者如糠椴、遼珍珠梅、遼磯松、榛等;而赤松、蒙古機、蒙椴等則南达苏北之雲台山。由此可加,山東之植物分佈上,仍在秦嶺、淮河一線之範圍内,如以淮河來作為植物之南北分界線,则并不能完全符合實際情况,尤以膠東沿海低地,南方植物種類繁多,可與淮河流域相此。因此,此一分界线之東端似有北移之必要。山東植物之分佈乃由環境条件综合影響之結果,但在不同地区,各種因素之作用並不一致,由於地形、土壤、温度和水分等之区别而使植物分布不同。本文所举植物種类和分布地點都是從各項资料所得到,作者将其分為四區,並初步提出了這種分区的理由和形成不同分布的原因。但限於材料的不够完全和水平的淺薄,因此本文的內容很不充實, 只能作为令後进一步研究山东植物地理的基础,希望大家提出补充和指出不正确的地方,而使这一项工作能够顺利的完成。

This paper reports on biological investigations on two Scelionid egg-parasites,Telenomus dendrolimusi Chu and Telenomus sp., of the pine caterpillar (Dendroli-mus punctatus), and their parasitization under field conditions at Nanking, Kiangsuand Changshan, Chekiang during 1954 to 1955. The effect of cold storage on theeggs both of pine caterpillar and the parasites is discussed. Telenomus dendrolimusi is the well-known egg parasite of pine caterpillar inChina. Formerly there was no knowledge that Telenomus sp....

This paper reports on biological investigations on two Scelionid egg-parasites,Telenomus dendrolimusi Chu and Telenomus sp., of the pine caterpillar (Dendroli-mus punctatus), and their parasitization under field conditions at Nanking, Kiangsuand Changshan, Chekiang during 1954 to 1955. The effect of cold storage on theeggs both of pine caterpillar and the parasites is discussed. Telenomus dendrolimusi is the well-known egg parasite of pine caterpillar inChina. Formerly there was no knowledge that Telenomus sp. parasitizes the cater-pillar egg in China, and this is the first report of its parasitization. Differences bothin the morphological characters and physiological reactions of the adult and larvaof Telenomus dendrolimusi and Telenomus sp. show that they are two different spe-cles. According to data at hand, Telenomus sp. is distributed in Nanking, Kianin,(Kiangsu Province), Changshan(Chekiang Province) and Canton(Kwangtung Pro-vince). It forms about 80% of the two Scelionids found in Nanking. Telenomus sp. overwinters in the larval stage in the egg-shall of its host, Ly-mantria sp. (Lepidoptera, Lymantriidae) and the adult emerges from the time whenthe first-brood Dendrolimus eggs appear the following spring. It does not perish either from low temperature in winter or from shortage of food or hosts in spring.So it is saperior to Telenomus dendrolimusi from the standpoints of biological con-trol practice. In Nanking, Telenomus dendrolimusi has 10-12 generations and Telenomus sp.has 8-9 generatiom annually. The proportion of females is about 80%. A female ofTelenomus sp. parasitizes 30 host-eggs in average, this amount being twice as manyas parasitized by Telenomus dendrolimusi. It oviposites all its eggs within a shortperiod and is easy to rear on a large scale under laboratory conditions. One-dny-old pine caterpillar egg was stored in a refrigerator at 4℃ for onemonth, the development of the embryo was not effected. The mature larvae ofTelenomus sp. are best suited for cold storage. Adults emerging from these eggsafter treatment produce normal healthly progeny without showing any ill effects.

1.本文主要研究松毛虫卵的两种黑卵蜂(Telenomus dendrolimusi Chu及Teleno-mus sp.,Scelionidae,Hymenoptera)的生物学特性;及1954—55年江苏南京和浙江常山等地林间的寄生情况,同时对松毛虫卵及黑卵蜂的冷藏也进行了试验。 2.两种黑卵蜂中,松毛虫黑卵蜂(Telenomus dendrolimusi Chu)与毒蛾黑卵蜂(Telenomus sp.)不但在形态上有所不同。而且在生活习性及各期虫态对低温的反应上亦各异,证明它们确系不同的两种。毒蛾黑卵蜂在我国系首次记载寄生于松毛虫卵中,现知在江苏南京、江宁,浙江常山及广东广州均有分布,在南京的黑卵蜂中占80%以上。 3.毒蛾黑卵蜂以幼虫态在寄主卵内越冬,利于冬季生存。越冬代成虫羽化时间接近松毛虫第1代卵出现期。且有松毒蛾(Lymantria sp.,Lymantriidae,Lepidoptera)作为补充寄主。这些特性均较松毛虫黑卵蜂为优。 4.室内外饲育结果,知松毛虫黑卵蜂在南京年可发生10—12代,毒蛾黑卵蜂年有8—9代,性比雌蜂占80%左右,毒蛾黑卵蜂破坏寄主卵粒平均为30粒左右比松...

1.本文主要研究松毛虫卵的两种黑卵蜂(Telenomus dendrolimusi Chu及Teleno-mus sp.,Scelionidae,Hymenoptera)的生物学特性;及1954—55年江苏南京和浙江常山等地林间的寄生情况,同时对松毛虫卵及黑卵蜂的冷藏也进行了试验。 2.两种黑卵蜂中,松毛虫黑卵蜂(Telenomus dendrolimusi Chu)与毒蛾黑卵蜂(Telenomus sp.)不但在形态上有所不同。而且在生活习性及各期虫态对低温的反应上亦各异,证明它们确系不同的两种。毒蛾黑卵蜂在我国系首次记载寄生于松毛虫卵中,现知在江苏南京、江宁,浙江常山及广东广州均有分布,在南京的黑卵蜂中占80%以上。 3.毒蛾黑卵蜂以幼虫态在寄主卵内越冬,利于冬季生存。越冬代成虫羽化时间接近松毛虫第1代卵出现期。且有松毒蛾(Lymantria sp.,Lymantriidae,Lepidoptera)作为补充寄主。这些特性均较松毛虫黑卵蜂为优。 4.室内外饲育结果,知松毛虫黑卵蜂在南京年可发生10—12代,毒蛾黑卵蜂年有8—9代,性比雌蜂占80%左右,毒蛾黑卵蜂破坏寄主卵粒平均为30粒左右比松毛虫黑卵蜂平均15粒左右为高。产卵期较集中,且在室内容易繁殖。 5.从发育1天的松毛虫卵冷藏于4℃冰箱中1个月不影响毒蛾黑卵蜂的寄生发育。毒蛾黑卵蜂在4℃冰箱中冷藏,以老熟幼虫为最好,冷藏1个月后,对其产生后代数无影

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。

 
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