系统发生的
- 与 系统发生的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The area of retinal and choroidal cell apoptosis is identical with it.
我们知道,在细胞凋亡发生过程中,有不同的信号传导系统介导和参与。
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Zoology environment aggravation basically behaves the resource that it is water rare be short of and development uses rate low; extensive cultivate course of study to make quality of agricultural zoology environment deteriorates quickly; prairie ecosystem suffers excessive depasture wait for a reason to destroy serious, natural prairie produces structural sex decline, vegetation productivity is reduced significantly.
生态环境恶化主要表现为水资源稀缺且开发利用程度低;粗放型的种植业使农业生态环境质量迅速退化;草原生态系统受过度放牧等原因破坏严重,天然草原发生结构性衰退,植被生产力显著降低。
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Indoor rearing and field systematic observations were carried out to explore the life history and behavior of Allothrombium ovatum Zhang et Xin,an ectoparasitic/ predatory mite on aphids in northern China.
卵形异绒螨Allothrombium ovatum是我国北方地区蚜虫的一种外寄生性天敌,室内饲养和田间系统观察结果表明:该螨1年发生1代,以卵在土壤内越冬。
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We have no evidence of what would happen if transfers were made between high elevational regions but vastly different day-length regimes.
假如引种是在热带高海拔地区之间进行,只是日照长短的系统有很大改变,究竟会有什么情况发生,现在还没有证据。
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In this paper, the biological characteristics of florescence, spikelet and inflorescences structure, morphogenesis formation of inflorescence, megasporogenesis and the development of female gametophytes were studied systematically by using anatomy structure, scanning electron microscopic and paraffin section methods. The results were as followed:(1) Phyllostachys praecox was the bamboo flowering fragmentarily; the cultivation changed the characteristic of flowering; the plantlets of flowering were complex and splitted into three kinds: the plantlet flowering before continued flowering; the plantlet flowering before stopped flowering and the plantlet changed into flowering. The inflorescence of Ph. praecox was indefinite inflorescence or called false inflorescence, and actually it was flower stress structure. Its basal unit was pseudospikelet with two kinds: apical spikelet and lateral spikelet. The floret had one lemma, one pelea, three stamens, one pistil and three lodicules.
本研究综合运用形态解剖学、扫描电镜、石蜡切片等技术手段,对雷竹花期生物学特性、小穗与花序构造、花序形态建成过程、大孢子发生与雌配子体发育等进行了较为系统的研究,结果表明:(1)雷竹为零星开花竹种,耕作条件对其开花特性具有重要影响;开花植株类型复杂多样,可以分为以前开过花现在继续开花、以前开过花现在停止开花以及以前未开过花现在转为开花等3种类型;雷竹花序为无限制花序或称&假花序&,实为花枝结构,基本单位为&假小穗&;假小穗有顶生和侧生之分;小花具内外稃各1枚,雄蕊3,雌蕊L,另具3枚大小不等之鳞被。
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The Da'anshan coal mine already entered the deep mining stage, Geologic structure is complex by the fold geologic structure primarily in the Minefield, the mining coal working surface and the tunnel impact geostatic pressure occurs frequently, but so far has not conducted the system research.
大安山煤矿现已进入深部开采阶段,井田内以褶曲为主的地质构造复杂,采煤工作面和巷道冲击地压发生频繁,但到目前为止还没有进行过系统研究。
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But in the absence of MgATP or Av2, the activation of △nifE Av1 did not happen.
在同时存在Av2和MgATP发生系统的条件下,△nifE Avl?
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The placement of 11 taxa, formerly sorted on the subgroup level of the Chinese Soil Genetic Classification System, in CST was elucidated in the paper. All these soils studieds are classified into 5 CST Orders: Anthrosols, Ferrosols, Argosols, Cambosols and Primosols, 5 CST Suborders: Stagnic Anthrosols, Udic Ferrosols, Udic Argosols, Udic Cambosols and Orthic Primosols, 15 CST Group and 23 CST Subgroups.
阐述土壤发生分类体系的11个亚类级土壤类型在中国土壤系统分类中归为5个土纲,即人为土、富铁土、淋溶土、雏形土和新成土;5个亚纲,即水耕人为土、湿润富铁土、湿润淋溶土、湿润雏形土和正常新成土;15个土类和23个亚类。
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The causes were right auricle injury by violently placing a electric catheter to it (n=2),coronary sinusinjury by violently placing a electric catheter to distal CS (n=3) and by intracardiac electric defibrillation using electric catheter electrodes of high right atrium and CS as current loop(n=1),perforations of right atrial wall (n=3) and left atrial wall(n=2) by sliding up of the transseptal set,and perforation of left auricle by misplacing the mapping catheter of left superior pulmonary vein to it (n=1). 10 cases of acute tamponade occurred during operation, and 2 after operation.12 patients were treated successfully with urgent pericardiocentesis, and no patients required emergency surgery.
引起心包填塞的原因有:①放置电极导管至右心耳时用力过大致右心耳损伤(2例);②放置电极导管至冠状静脉窦时,因导管不易进入远端而用力过大致CS损伤(3例);③心内电除颤时采用高位右房和CS电极作回路,致CS损伤(1例);④房间隔穿刺系统向上滑动穿破右房(3例)和左房(2例);⑤放置左上肺静脉标测电极时导管误入左心耳致其穿孔(1例)。10例急性心包填塞出现于术中,另2例术后发生。12例患者经紧急心包穿刺引流均成功治愈,无1例需外科急诊手术。
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The causes were right auricle injury by violently placing a electric catheter to it (n=2),coronary sinusinjury by violently placing a electric catheter to distal CS (n=3) and by intracardiac electric defibrillation using electric catheter electrodes of high right atrium and CS as current loop(n=1),perforations of right atrial wall (n=3) and left atrial wall(n=2) by sliding up of the transseptal set,and perforation of left auricle by misplacing the mapping catheter of left superior pulmonary vein to it (n=1). 10 cases of acute tamponade occurred during operation, and 2 after operation.12 patients were treated successfully with urgent pericardiocentesis, and no patients required emergency surgery.
引起心包填塞的原因有:①放置电极导管至右心耳时用力过大致右心耳损伤(2例);②放置电极导管至冠状静脉窦时,因导管不易进入远端而用力过大致CS损伤(3例);③心内电除颤时采用高位右房和CS电极作回路,致CS损伤(1例);④房间隔穿刺系统向上滑动穿破右房(3例)和左房(2例);⑤放置左上肺静脉标测电极时导管误入左心耳致其穿孔(1例)。10例急性心包填塞出现于术中,另2例术后发生。12例美白患者经紧急心包穿刺引流均成功治愈冬季,无1例需外科癌症急诊预防手术胃痛。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。