多根的

The interconnection equipment electric cable is longest may reach 5 m reaches 5 level of analysis situs connections through the USB concentrator by the chrysanthemum chain analysis situs form realization but outside meets 127 USB equipment.

该文依据的是USB1.1协议规范，总线一共4根：5V电源线、地线及两根以差分形式驱动的数据线D＋、D－。连接设备的电缆最长可达5 m，通过USB集线器以菊花链拓扑形式实现多达5级的拓扑连接，可外接127个USB设备。

The synthesis methods of energetic salts and energetic ionic liquids(cations including triazole, tetrazole, bridged azole, hexamethyenetetrammonia, etc;and anions including nitrate, perchlorate, azide, tetranitratealuminate, polycyan anion, N,N'-dinitrourea, etc.) are reviewed, and the effects of cations, anions and their substitution groups on melting point, enthalpy of formation, density of the materials are summarized.

本文综述了多种含能盐和含能离子液体（阳离子包括三唑、四唑、双环唑、六次甲基四胺等；阴离子包括硝酸根、高氯酸根、硝基唑、叠氮根、四硝基铝、多腈基化合物、二硝基尿素等）的合成；结合其表征结果分析了阳离子上的取代基以及阴阳离子对它们的性能如熔点、生成焓、密度等的影响。

It is nothing squeamish and can not give him too much poured the water, pouring too much water, roots will rot away, does not require much care, just to draw moisture from the air you can survive.

它一点也不娇气，不能给他浇太多的水，浇太多的水根会烂掉，不需要太多的照顾，只需要从空气中吸取水分就可以成活。

Results: Among the 47 cases, 33 cases were teeth pulpless tissue including 14 endodentically treated teeth and 14 cases were vital teeth with periodontitis, cracked tooth and occlusal traumatism.

结果：牙冠纵折多见后牙，以上颌第一磨牙为多见，其中无髓牙33例，牙折裂前有近一半曾作过根管治疗，活髓牙14例，存在不同程度的牙隐裂，牙周炎和咬合创伤。

The tracheary elements in secondary xylems of Actaea asiatica root and rhizomes were observered with a scanning electron microscope and found to contain abundant types, which mainly included tracheids, tracheid-like vessels, fibriform vessels, and typical vessels. Of these types, the tracheids, tracheid-like vessels, fibriform vessels were first found. Scalariform perforation plates, reticulate perforation plates, mixed perforation plates and simple perforation plates were observed in the typical vessels and the reticulate perforation plates ,mixed perforation plates were first founded the lateral-wall perforation plates, multiple end walls and pit membrane vestige were also observed in the tracheary elements.

利用扫描电子显微镜对毛茛科类叶升麻根和根状茎次生木质部中的管状分子进行观察，发现其管状分子类型丰富，主要有：管胞、管胞状导管、纤维导管和典型的导管分子，其中管胞、管胞状导管和纤维导管为在该类群中首次报道；在导管分子中，存在着梯状穿孔板、网状穿孔板、混合型穿孔板和单穿孔板，其中网状穿孔板和混合型穿孔板为在该类群中的首次报道；对其导管分子上的侧壁穿孔板、多穿孔板和纹孔膜残余也进行了描述。

On the base of study on arbuscular endomycorrhiza of Alnus of Changbai Mountain and nitrogen-fixing woods of Northeast of China, the paper attempted to reveal the DNA molecular polymorphism of the symbiotic arbuscular endomycorrhizal fungi for the effect that make better use of the fungi resource.

本项研究利用分子生物学技术和研究方法对中国吉林长白山地区非豆科固氮植物以及东北地区固氮树木的丛枝菌根真菌DNA分子多态性及其与宿主植物之间的相互关系等进行初步研究，旨在利用分子生态学理论和研究方法揭示丛枝菌根真菌多样性及其与宿主植物之间相互适应和协同进化的一般规律，为更好地保护和利用这一重要的微生物资源提供理论依据。

The information has been provided by Jeff Blaine, Radoslav Bodo, Jakob Haufe, and Jorgen Wahlsten .

的资料已经提供了杰夫布莱恩，拉多斯拉夫博多，雅各布豪费，和根Wahlsten。

This paper briefly introduced the technical principle of Randomly amplified polymorphic DNA,and the necessity of Classification and authentication on the varieties of Bulbous Flowers.

简述了随机扩增多态 DNA技术的原理，及对球根花卉品种分类鉴定的必要性，通过对唐菖蒲和仙客来的实践应用，建议开展 RAPD技术在球根花卉品种分类上的应用研究

However, he falls for the charms of Lee Mi Sook's character (and what great casting for the role of Cinderella's stepmom!) and remarries, and thus gains another daughter in Moon Geun Young.

可是他却被李美淑一角的魅力所吸引而再婚（李饰演灰姑娘徐雨的后母，灰姑娘姐姐文根英的亲母），亦因此多了一个继女儿文根英。

After much effort, such a formula was indeed found for quartics — but since then it has been proven that such an approach dead-ends with quartics; they are the highest-degree polynomial equations whose roots can be expressed in a formula using a finite number of arithmetic operators and n-th roots.

自然，人们为了找到这些根做了许多努力。就像其它多项式，有时可能对一个四次方程分解出因式；但更多的时候这样的工作是极困难的，尤其是当根是无理数或复数时。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。