分离的

Abrin is one of the potent toxins isolated from the beans of plant abrus precatorius.the toxic protein consists of two disulfide-bonded subunits,the a and b chains.the b chain is a galactose-specific lectin that facilitates the binding of abrin to the cell membrane that precedes endocytosis.after entering the cells,the a chain catalytically inactivates 60s ribosomal subunits by removing adenine position 4324 of 28s r–rna,and thereby inhibits protein biosynthesis.

相思子毒素是从豆科植物(abrus precatorius l。)种子中分离的一种细胞毒性蛋白。它由a，b两条链组成，由一个二硫键相联，b链具有半乳糖凝集活性，可与细胞膜上受体结合，帮助a链进入细胞内，a链进入细胞催化失活60s核糖体亚基，从而使细胞蛋白合成被抑制。

Four extracting agents for Lanthanides/Actinides separation , dialkyldithiophosphinic acids, were synthesized from PSCl3 and alkyl halide by Grignard reaction, sulfuration and acidification.

以PSCl3和卤代烷为原料，经格氏反应、硫化和酸化合成了用于镧/锕分离的4个萃取剂——二烷基二硫代次膦酸，其结构经NMR，IR和MS表征。

Sin and death are an adamantine chain and link that none can sever.

罪与死是不会分离的坚固锁炼。

B Of the six basic media MS, MS1/2 (half-strength of MS salts and vitamins), WPM, DKW, B5 and SH, MS1/2 was the most proper one to induce somatic embryos. Somatic embryos generally regenerated directly from excised zygotic cotyledons. PGRs combination affected somatic embryogenesis significantly. Medium with NAA 1mg/L, TDZ 0.05mg/L, IBA 2—10mg/L combined with BA 10mg/L, or IBA 10mg/L integrated with BA 0-2mg/L gave the highest induction rate. Excised zygotic hypocotyls had the strongest potential to produce callus. Callus induction was also affected significantly by media and PGRs. The proper callus induction condition was MS1/2 medium containing NAA 1mg/L, IBA 10mg/L, BA 2-5mg/L and TDZ 0.05mg/L. Harvest period affect somatic embryogenesis significantly. Zygotic embryo explants collected from the end of July to the middle of August had strong potential to generate somatic embryos, when endosperm finished solidification, different parts of the embryos were completely formed, the size of embryos occupied about 2/3 of the embryo sac. Provided with optimized conditions, direct somatic embryogenesis rate can attain to 33. 68%, and callus induction rate of hypocotyls was up to 90.7%. Cytological observation on megasporogenesis and zygotic embryogenesis of Manchurian ash showed that the ovary was twicarpellum, twilocular with two ovules each loculus. The ovule was tenuinucellar and anatropous, with one megasporcocyte. The development of embryo sac is of the Polygoum type.

体细胞胚胎发生研究的结果表明：(1)成熟过程中的合子胚是诱导水曲柳体细胞胚胎发生的最佳外植体材料；(2)在所试验到的MS、MS1/2（将MS的所有成分均减半）、WPM、DKW、B〓、SH等六种基本培养基中，MS1/2是最适合诱导水曲柳体细胞胚胎发生的基本培养基；(3)水曲柳的体细胞胚胎发生以直接发生为主，体细胞胚主要来自于从合子胚分离的完整子叶；(4)培养基中的激素组合对水曲柳的体细胞胚胎发生有显著影响，诱导直接体细胞胚发生较好的激素组合有NAA 1mg/L+IBA 2，5，10mg/L+BA 10mg/L+TDZ 0.05mg/L和NAA 1mg/L+IBA 10mg/L+BA 0，2mg/L+TDZ 0.05mg/L；(5)合子胚分离的下胚轴具有最强的愈伤组织诱导潜力，少数愈伤组织可以分化出体细胞胚；(6)愈伤组织的诱导也受培养基和激素配比的显著影响，最适宜诱导的培养条件为MS1/2+NAA 1mg/L+IBA 10mg/L+BA 2，5mg/L+TDZ0.05mg/L；(7)采种时间对体细胞胚胎发生有显著影响。7月末到8月中旬的合子胚具有较强的体细胞胚发生潜力，此时种子尚未成熟，胚乳已呈固态，种胚的各个部分已分化完全，种胚体积占胚腔的大约2/3；(8)在各自综合的最适条件下，完整子叶的体细胞胚诱导率可达33.68%，下胚轴的愈伤组织诱导率可达90.7%。

The fact that the pink plants were predominant among the population of RP1 cross progeny hints that the pink had the strong descendiblity, Whereas another fact that the plants with the color of another parent were predominant among the population of R01 cross progeny indicates that the nacarat/saffron plant had the low descendiblity. The above results suggest that it is better to choose the pink plants with the target color flower of breeding as a parents when arranging the cross combination. Many novel flowers with singular value of view and admire can be bred by the different cross combination since the wide segregation chromatogram is not confined to the parents'.

以RPl及R01作母本或父本，分别与不同花色杂交，F1代发生了明显的花色分离，RP1的杂交后代均以粉色占优势，表明粉色的遗传力较强，R01的杂交后代均以其它亲本占优势，表明桔黄/桔红的遗传力较弱，因此在选配组合时，最好选择具有育种目标的粉色个体作为亲本；另外由于分离谱较广，且分离的色谱范围并不完全限于双亲之间，可根据不同的杂交配组，培育出具极高观赏价值的稀有花色。

A tunneling machine for producing large tunnels in soft rock or wet, clayey, unconsolidated or bouldery earth by simultaneously detaching the tunnel core by thermal melting a boundary kerf into the tunnel face and forming a supporting excavation wall liner by deflecting the molten materials against the excavation walls to provide, when solidified, a continuous wall supporting liner, and detaching the tunnel face circumscribed by the kerf with powered mechanical earth detachment means and in which the heat required for melting the kerf and liner material is provided by a compact nuclear reactor.

&…一个在软岩石，或湿的、粘土状的、疏松的，或巨砾泥土中挖掘隧道的隧洞掘进机，用先进的以上升暖气流进行隧道核心分离，将边界切口熔入隧道面，同时通过使偏倚在隧道壁上的熔融物料在凝固时提供一个连续墙来支持衬垫，形成一个支持挖掘的墙壁；破碎在切口周围划了界限的隧道核心-用有动力的机械土地分离的方法，在隧道核心中，需要如此操作的热力以及衬垫物料由一个小型的核反应堆提供……&

A simple NACE method has been developed for the assay of Rutaecarpine in Evodia rutaecarpa for the first time. Optimum separation of the analytes was obtained using a nonaqueous buffer system with 40 mmol/L ammonium acetate containing 30% acetonitrile and 10% acetate acid.

考察了影响电泳分离的各因素如缓冲溶液的浓度、用于调节酸碱度的乙酸的添加比例及用于调节电渗流的乙腈的添加比例，最后优化的分离缓冲溶液的组成是40 mmol/L NH4Ac 的甲醇溶液，其中含有30%的乙腈和10%的乙酸。

The synthesized PCU was then characterized by infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, small-angle X-ray scattering, and tensile strength measurement. The IR showed that the polymer synthesized by the above two methods both have the polycarbonate-urethane structure and the tensile measurement showed good mechanical performance of the polymer. The DSC and TGA data showed that there is an obvious soft-hard glass transition area, which indicated the existence of the micro-phase separation structure. The extent of the phase separation was affected by the ratio of starting materials, the molecular weight of PCD, and the polymerization method. The decomposition upon heating was observed in two steps. SAXS result showed that the radius (r_2), the distance between domains (d_2), and gyral radius (R_2) of hard segment micro-domain were fairly affected by the starting materials ratio and soft segment content.

IR结果表明两种方法合成的聚合产物均具有聚碳酸酯聚氨酯的结构；拉伸实验表明聚合产物具有良好的力学性能；DSC、TG结果表明，聚合物呈现出较为明显的软硬段玻璃化转变区，表明存在微相分离的结构，相分离的程度受原料配比、软段分子量、聚合方法的影响，其热分解分为明显的两个阶段； SAXS结果表明，聚合物原料配比、软段含量的变化对硬段微区回旋半径R_2，微区间距d_2，微区半径r_2影响不大其值分别为9.5(A|°、29、7.4，但对软段的微区半径及间距影响较大，随着软段含量的增大，软段微区的半径r1和间距d1都增大。

The bonding form in extracted species can be represented by:〓 It was the direct bonding of donors that made the extraction of partially hydrolyzed iron much more effective, and the stereoselectivity of coordination that made the extraction of unhydrolyzed iron depressed, so that the extraction system became selective to the partially hydrolyzed iron .

研究中选择仲辛醇作为协萃剂对ZnSO〓溶液中的Fe-Zn分离进行了进一步的考查，无论对配制的溶液或是真实的ZnS高压浸取液，除铁及Fe-Zn分离的效果都非常好，而且反萃铁时的用酸量与传统的伯胺除铁过程相比降低了10倍以上，该体系是一个较为经济合理的具有一定发展潜力的萃取除铁体系。

The hard segments pack firmly and form hard segment domains which bear certain degree of regularity. In polyether polyurethane zwitterionomers,variation of the amount of hydrogen bondings formed between hard and soft segmentswith the degree ionization conforms with the phase separation between the hard andsoft segments observed in wide line study.

特别是聚醚聚氨酯离聚体浓溶液中软段与硬段之间形成的氢键的数量和固体变温方法测得的样品的相分离情况完全一致，表明浓溶液中高分子链段间的相互作用和固体条件下的情况一致，可以通过浓溶液的核磁共振研究来了解链段间的相互作用，研究影响体系相分离的因素。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。