二重的
- 与 二重的 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 title compound (C21H15N5O) was obtained by the reaction of 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one and 4-(2,2-dicyanovinyl)benzonitrile in water in the presence of TEBA and by recrystallization from EtOH(95%) and DMF.
水溶剂中,在三乙基苄基氯化铵存在下,由3-甲基-1-苯基-1H-吡唑-5(4H)-酮和4-(2,2-二氰基)苯基氰合成并经N,N-二甲基甲酰胺与95%乙醇的混合溶剂重结晶得到化合物C21H15N5O的晶体。
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The results showed: the calcium, phosphate and ALP in blood in the osteoporosis rats induced by DXM were normal, the bone ash wight, bone dense and intestinal Ca2+ absorption were declined compared with these of the normal rats (p.05). Afterwards, the osteoporosis rats were treated with replenishing kideny herbs or calcium.
实验结果发现,地塞米松诱发的骨质疏松大鼠的血钙、磷、碱性磷酸酶及尿羟脯氨酸均在正常水平,骨密度、骨灰重下降,肠钙吸收减少,与正常大鼠比较有统计学差异(P.05),血中雌二醇、1,25-2-D3水平降低(P.01,P.05),PGE2升高(P.05),经过补肾中药或钙剂治疗后,血雌二醇、1,25-2-D3水平回升而PGE2回降,均接近正常水平。
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It indicates that the N—O bonds in the singlet dimer adsorption configurations are weaker than any other structures, and this is propitious to the NO direct decomposition. 7. Unlike NO molecules interaction with copper atoms, when two NO molecules interact with the adjacent silver atoms, the non-planar structures are more stable than the planar.
同时,单重态的二聚体与相邻的金属铜和银原子作用时,由于电子从金属原子转移到二聚体上的数量最多,因此在这种吸附构型中,金属原子被离子化的倾向最大,同时使得二聚体中N—O键被削弱的程度也最大,有利于NO的直接分解; 7。
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This is the first example of two-dimensional lanthanide MOFs with one dimensional water chains.2、Coordination polymer[Nd_2_3(H_2O)_2]·bpy·4H_2O(2)(bpdc=2, 2′-bipyridine-3,3′-dicarboxylate,bpy=4,4′-bipyridine)had been synthesized under hydrothermal conditions and its structures were determined by X-ray diffraction,and confirmed by IR and TG analysis.
该结构是在二维骨架的镧系配位聚合物中首次观察到的一维的水链结构。2、以Nd_2O_3,2,2′-联吡啶-3,3′-二羧酸和4,4′-联吡啶为原料,采用水热法合成了一个具有二维骨架结构的配位聚合物[Nd_2_3(H_2O)_2]bpy·4H_2O,通过IR、x射线单晶衍射分析和热重等手段对其结构进行了表征。
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It would be an intersting and reflection way to reacquaint myself with the scale and beauty of my native land after nearly twenty years ofliving aborad.
它将让漂泊异乡将近二十年后重归故土后的我,以一种妙趣横生的反思方式在大好河山中重拾自我。
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The technology of sulfonating heavy alkylbenzene, byproducts during dodecylbenzene production, with SO3/air mixture in a film sulfonator and the properties of produced heavy alkylbenzene sulfonates as surfactant for alkalinesurfactantpolymers flooding are studied.
研究了重烷基苯——十二烷基苯生产中副产物的SO3降膜式连续磺化工艺和所得重烷基苯磺酸盐作为碱-表面活性剂-聚合物三元复合驱用表面活性剂的性能。
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Third, Evaluation criteria are inflexible and can not serve the aim of evaluating different projects with different characteristics, the evaluation index being unchangeably bound to papers, works, or scientific research projects.
通过对我国高校教师科研评价的研究发现存在如下问题:一是评价方法不完善,以定量评价为主;二是重形式轻实质,注重科研成果发表的刊物级别、获奖等级,并以是否&核心&、SCI、EI收录等形式代替实质;三是评价标准单一化,不管评价目的是否相同,均采用论文、著作及科研项目等源生指标作为评价标准;四是重数量轻质量,教师为了数量达标,不得不为凑数写文章。
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In the sensitive and simple method, the p-phenylenediamine dihydrochloride was oxided to diazotized products with the reaction of NaNO2 in H2SO4 medium.
色氨酸与重氮化的对苯二胺二盐酸盐在硫酸介质中生成粉红色化合物,该化合物最大吸光值为522nm;摩尔吸光系数为0.89×104L/mol·cm;偶合产物至少稳定存在1h;色氨酸浓度在0.30~12μg/ml范围内遵循朗伯比尔定律。
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The yield was 47.3%. A series of21 azo-1,3,4-thiadiazole compounds were synthesized by diazotizing of2-amino-5-alkyl-1,3,4-thiadiazole with nitrosylsulfuric acid, then couplingwith phenol, substituted phenol or naphthol. The yields were 19.6~58.8%.16 of them were new compounds.
制得的2-氨基-5-烃基-1,3,4-噻二唑用亚硝酰硫酸进行重氮化,再与苯酚、取代苯酚或萘酚发生偶合反应合成了21个偶氮-1,3,4-噻二唑类化合物,其中16个为新化合物,收率为19.6~58.8%。
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We believe that these know there are confusion and misunderstanding: the Han dynasty with six, the number one or two are actually composed of Yin and Yang Yao Yi Gua 64 hexagrams of the other kind of painting writing, it is not appropriate to "double-digit Gua" Moreover, he pre - avowed; so-called "10 digital hexagrams" If Mr.
已知崧泽文化中的数字卦虽然没有将二、三、四归并入一、六两数,但它们显然也不可能是徐先生所论&四万六千六百五十六个重卦,二十七万九千九百三十六爻&那种数字卦。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力