系统发生

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。

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。

On the base of review the research development in tissue culture and genetic transformation, Comparative analyses were made on the callus induction and embryogenetic abilities of anther and non-pollinated ovules of rubber tree. Fluorescence detection was implemented with the different in vitro material of Hevea brasiliensis.

本研究在综述了橡胶树组织培养及遗传转化研究进展的基础上，系统地比较了橡胶花药和未授粉胚珠愈伤组织诱导及体细胞胚胎发生能力，对橡胶树不同离体组织进行荧光背景检测，将在植物胚胎发育时期起重要作用的BBM基因导入橡胶树，对电激法转化游离小孢子细胞以及农杆菌介导花药愈伤组织进行初步探索。

The salty gland of Messerschmidia sibirica is developed from epidermic cell of stem and leaf.

利用石蜡切片法研究了砂引草茎叶的解剖结构，尤其是对泌盐腺的位置、泌盐腺的形态结构及泌盐腺的发生发育过程进行了系统的研究，结果表明：砂引草茎的初生结构维管束是外韧的，且其有10-12束，大小不等，髓和髓射线发达；叶的上下表皮细胞各一层，栅栏组织与海绵组织分化明显。

Paraffin sectioning was employed to study the developmental structure of stems and leaves of Messerschinidia sibirica, especially the position, the structure and the formation and development of the salty gland. The result indicated: that salty gland of M. sibirica is from epidermic cell of stem and leaf. Based on the observation we found one primary kind of salty glands structure which consists of many cells on the epidermis including the collecting cell and the secretory cell and so on.

利用石蜡切片法研究了砂引草茎叶的解剖结构，尤其是对泌盐腺的位置、泌盐腺的形态结构及泌盐腺的发生发育过程进行了系统的研究，结果表明：砂引草的盐腺由茎叶的表皮细胞发育而成，通过观察发现在砂引草的表皮上存在着一种主要的盐腺结构，它是由多个细胞组成，包括收集细胞和分泌细胞等。

However, very few cases of ES have been studied, and INI1 expression in other epithelioid malignant neoplasms has not been examined systematically.

最近有研究表明，一些上皮样肉瘤的INI1基因也发生了失活，但这些研究中ES的病例很少，且也没有系统地检查INI1在其他上皮样恶性肿瘤中的表达情况。

The tectonic effect by foreland basin system might not be significant since Kueichulin Formation corresponded to eustatic sea level change and the Kueichulin Formation might means an unaffected tecton - sediemntary unit. The locality might be the hinge of forebulge flex.

前凸起的运动模式应为以垂直向上抬升为主，而非有向陆迁移之现象之外，而其发生时间应为6.5 - 5.6Ma；由於桂竹林层仍符合全球海水面变化，则其表示了一个在前陆盆地系统挠曲行为中一个较不被影响的构造单元，则此应为前凸起之枢纽带位置。

The constructed wetland was a good new ecological method for treating eutropic lakes water with abundant algae.

藻类的去除主要发生在湿地水流方向的前几层，而系统其他层对藻类只有微弱的去除效果。

Symmetric instability is important to the development of extratropical oceanic frontal cyclones and Jiang-Huai rainstorm, which, as a kind of mesoscale unstable energy, must be started up to come into effect.

4对称不稳定作为一种中尺度的不稳定，对本研究中海洋气旋及江淮梅雨锋中尺度系统的发生发展有重要作用。

It is an ancient species in its own genus and well-adapted to drought environments with fissurate growth and summer dormancy. Methods We selected Dengkou as our research site and collected three stages of P. mongolica (before, during and after fissuration) during August 1-5, 2002 and 2003. We used PV technique and measured several water relations parameters (φ,φ, ROWC, RWC,△(subscript φ),ε etc. in different stages of fissurate growth for comparison and analysis of drought tolerance and its mechanisms. Important findings Different stages of P. mongolica had different abilities and pathways to maintain turgor pressure. Fissurate growth decreased the species' drought tolerance and involved multiple adaptations to drought.

选取内蒙古磴口县境内具有绵刺群落的草原化荒漠区为研究样区，于2002~2003年每年8月1~5日采集未劈裂、正在劈裂和已劈裂植株，运用PV技术对不同劈裂生长状态绵刺的多种水分关系参数φ(下标 s、φ、ROWC、RWC、△、ε进行了测定，从绵刺保持膨压的能力和途径两方面进行了深入探讨；同时结合同一项目研究中绵刺劈裂生长过程中抗氧化酶系统和内源激素方面的研究成果，综合分析并探讨了绵刺劈裂生长的发生机理及其环境适应性。

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。

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。