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entered the host
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  进入宿主
     Once HBV has entered the host cell, its genome is converted into a covalently closed circular DNA(CCC-DNA).
     当HBV进入宿主细胞后,基因组转变为共价闭合环状DNA(CCC-DNA)。
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  “entered the host”译为未确定词的双语例句
     Appressoria were formed at temperature ranging from 20 to 30℃,at optimum 25 to 28℃,Conidia adhering to the young stem epidermai hair of the tobacco germinated and formed the appressoria which entered the host directly from the base of the epidermal hair.
     结果表明,低头黑病菌形成附着胞的适宜温度为20~30℃,最适宜温度为25~28℃; 病原菌以分生孢子附着在烟株幼茎表皮毛上萌发形成附着胞,从表皮毛基部直接侵染引起发病。
短句来源
     This article firstly introduced constitutes of the Weight In Motion system which took AT89C51 microcomputer as its core coupled by an A/D convert circuit and a charge amplifier with an emphasis on the latter. Then the signal entered the host computer and was worked by the software part.
     首先给出了动态称重系统设计组成,该系统以单片机AT89C51为核心,配以电荷放大器、A/D转换单元,然后用主机进行软件处理,重点介绍了其中的电荷放大器。
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  相似匹配句对
     China has be entered into the WTO.
     中国已加入WTO。
短句来源
     China has entered into WTO ;
     中国已加入WTO ;
短句来源
     China has entered WTO.
     我国已加入WTO。
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     The Thought about Entered into WTO
     面对入世的思考——试论加入世贸对中国非织造布工业的影响
短句来源
     The Rickettsia entered and parasitized in host cytoplasm and nucleoplasm;
     发现立克次体以宿主细胞膜内翻形式进入宿主细胞,在胞浆和胞核内寄生,以二分裂方式增殖;
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  entered the host
The mat was able to grow along the twig surface, then hyphae forming mat entered the host tissue and caused necrotic lesions.
      
The hyphae entered the host either through stomata or penetrated the epidermis directly, with the latter method being more common.
      
The Gunnera cell walls subsequently dissolved adjacent to the cyanobacteria and Nostoc entered the host cells (Stage V).
      
Clear bands defined by zebrin I reactivity were seen where groups of the grafted PC had entered the host molecular layer.
      
We argue that an MNE can affect the severity of corruption both before and after it has entered the host-country.
      
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The blight disease of tungoil trees is generally called tungoil tree pestilence. It is a vascular disease caused by a new formae speciale of Fusarium oxysporum, Fusarium oxysporum Schl. f. sp. aleuritidis f. sp. Nov. This disease is found in the provinces of Jiangxi, Zhejiang, Hunan, Sichuan, etc. in our country. It usually attacks the 3-4-year-old tungoil trees, or the older ones. The pathogen enters the host plant through its roots, multiplies in its vessels and gradually extends upwards to parts of...

The blight disease of tungoil trees is generally called tungoil tree pestilence. It is a vascular disease caused by a new formae speciale of Fusarium oxysporum, Fusarium oxysporum Schl. f. sp. aleuritidis f. sp. Nov. This disease is found in the provinces of Jiangxi, Zhejiang, Hunan, Sichuan, etc. in our country. It usually attacks the 3-4-year-old tungoil trees, or the older ones. The pathogen enters the host plant through its roots, multiplies in its vessels and gradually extends upwards to parts of the plant above ground, thus causing the whole or half of the plant to die. The highest infected rate of tungoil trees may reach 60-90%- It is a destructive disease and seriously threatens the production of tungoil trees.

作者在油桐枯萎病病原菌的分离、鉴定、寄主范围及生物学特性等方面作了研究,认为:从其形态特征看,应属尖孢镰刀菌,从寄主范围看,未发现此菌为害其它寄主植物,尖孢镰刀菌的其它专化型和茄病镰刀菌(Fusarium solani)也很少为害油桐。作者建议将油桐枯萎病病原菌命名为尖孢镰刀菌油桐专化型(Fusurium oxysporum Sehl.f.Sp.aleuritidis f.Sp.nov)。 油桐枯萎病病原菌孢子能在pH 3—12范围内的清水中正常萌芽。相对湿度低于80%孢子不能萌芽。孢子萌芽的最适温度为25—30℃。病原菌生长对碳,氮,磷素无特殊要求,但氮素为病菌生长所必需。

This paper is the first time to describe the ultrastructure of milk velch root nodules because of the plants growing only in our country.The nodules with ter- minal meristem are morphologically very similar to those of clover,alfalfa and pea that they are elongated and cylindrical in shape.According to the anatomical arrangement of the nodules which provides an excellent development gradient of the symbiotic pro- cess along its length,the nodules were sectioned into three equallengh portions,and the central...

This paper is the first time to describe the ultrastructure of milk velch root nodules because of the plants growing only in our country.The nodules with ter- minal meristem are morphologically very similar to those of clover,alfalfa and pea that they are elongated and cylindrical in shape.According to the anatomical arrangement of the nodules which provides an excellent development gradient of the symbiotic pro- cess along its length,the nodules were sectioned into three equallengh portions,and the central tissue of middle one was used as exprimental material which may show ultra- structure of mature cells infected by rhizobia and have the function of nitrogen fixa- tion.Most of the cells in central tissue were infected by rhizobia which entered the host cells also in a way of infection thread.The bacteriods developed from released rhizobia are enclosed by envelope membranes.In general,cach envelope membrane packs one bacteriod.The envelope membranes can be extended by fusing themselves with vesicles or small vacuoles in cytoplasm of host cells,and finally enclose the bacteriods from tight to loose.Both the envelope membranes and the surface of bacteriods have protru- sions,and some of them touch and fuse together to form a pipe-like canal.The rela- tionship between the kinetic change in envelope membranes and the senescence of bacte- folds,as well as the material exchange between bacteroids and host celts are discussed. It is pointed out that the bacteriods loose enclosed by envelope membrane and the ex- istence of electron-empty space,possibly represent a mature stage of bacteroid develop- ment.The structure of pipe-like canals between bacteroids and envelope membranes of host cells is considered probably to be an expression of material exchange function.

本文初次报道紫云英根瘤的超微结构。用根瘤中段的中心组织作实验材料,以显示受根瘤菌侵染的宿主细胞的一般结构。细菌借助于侵入线进入宿主细胞,发育成拟菌体,为包囊膜所裹。一个包囊膜内一般只有一个拟菌体。包囊膜可以与细胞质内的囊泡和小液泡融合而扩增,导致膜对拟菌体的包裹由紧密到疏松的变化。包囊膜和拟菌体表面都有突起,两者的突起相对接触和融合。对拟菌体包囊膜的动态变化与衰老的关系以及宿主细胞和拟菌体之间物质交换的关系进行了讨论。作者指出包囊膜的扩增和电子透明区域的存在,是拟菌体发育成熟的一个阶段,包囊膜和拟菌体通过互相突起、融合沟通的结构,可能是宿主细胞和细菌之间物质交换功能的一种表现。

A new species of mermithid nematodesnamed Romanomermis sichuanensis (Pengand Song, 1984) was found to parasitizethe larvae of Anopheles sinensis in Sichuanin 1982. This paper describes its life cycle.and biological characteristics. The egg (photo. 1-3) possessed a thintransparent shell and a single cell withinwhen laid, which developed to mature andhatched in water for 6-12 days at 22-30℃.During the infective stage the juvenile mer-mithid entered the larval mosquito bythe cuticular penetration (photo.4-8)....

A new species of mermithid nematodesnamed Romanomermis sichuanensis (Pengand Song, 1984) was found to parasitizethe larvae of Anopheles sinensis in Sichuanin 1982. This paper describes its life cycle.and biological characteristics. The egg (photo. 1-3) possessed a thintransparent shell and a single cell withinwhen laid, which developed to mature andhatched in water for 6-12 days at 22-30℃.During the infective stage the juvenile mer-mithid entered the larval mosquito bythe cuticular penetration (photo.4-8). The second molt occurred 3(1/2)-4(1/2) daysafter the nematode entering the host. Thewhole parasitic stage lasted 7-10 days. Thehost usually died in 5-60 min after thenematode escaped through the cuticle ofits host. In culture the escaping postpara-sitic juveniles molted to adults, mated in5-10 days and deposited eggs 8-10 daysafter the molt. The oviposition periodranged from 30-60 days and the number ofthe eggs laid varied from 401-3560. Someadults lived about 160 days. The entire life cycle of R. sichuanensisin the laboratory at 22-30℃ took 26-42days. The results of the field survey andexperimental infections (see the otherpapers) showed that the larvae of Ano-pheles sinensis were very susceptible tothe R. sichuanensis.

对四川罗索线虫新种生活史及生物学特性研究结果表明,在室温22~30℃时,其完成一代的生活周期需26~42天,雌虫产卵期为30~60天,成虫最长寿命可达160天。室外调查和实验感染结果表明中华按蚊幼虫对四川罗索线虫很敏感。受染的中华按蚊幼虫通常干线虫逸出后5~60分钟内死亡。因此该线虫在生物防制方面的实用价值是值得重视和研究的。

 
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