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It deuced from a 77 amino acid precursor, preproapelin, which can be cleaved into several molecular forms including apelin-36 and apelin-13 in different tissues.

Apelin由77个氨基酸组成的原前体肽转录而成，在体内存在包括apelin-36和apelin-13等在内的多种分子形式。

H2O is indirectly obtained from a precursor ligand, through metal ion Cu induced the hydrolysis of diamide and self-assembled with the hydrolyzate.

Cu离子促进双酰胺配体。N，N'-双异烟酰咪唑啉-2-硫酮的水解，进一步与水解产物异烟酸根自组装形成超分子配合物[Cu(C5H4NCOO)2(H20)2]。H2O，通过X射线衍射对其晶体结构进行了测定。

All the compounds are characterized by IR and elemental analysis.we design and prepare a bipyridinium supramolecular compound and six coordination compounds, which are also characterized by IR, elemental analysis and X-ray structure analysis. According to X-ray structure analysis, hydrogen bonds and n-n stocking interactions participate in the architecture of three-dimensional framework [H2L1 (NO3)2 (H2O)2]n; one-dimensional zigzag coordination polymer [Hgl21.5CH3OH]n; binuclear metallamacrocycle (HgI2L2)2 3H2O; helical double-stranded one-dimensional coordination polymer [Co2(L2)2-2CH3OH]n; double-stranded one-dimensional coordination polymer [Co2(L3)2-CH3OH-CH3CN]n; and three-dimensional compound [Cu(C5H4NCOO)2(H2O)2]-H2O with hydrogen bonds, three-dimensional coordination polymer {[Cd(C5H6NCOO)2H2O]-DMF}n, which are indirectly obtained from the precursor ligand L3 through metal ion induced the hydrolysis of diamide and self-assembled with the hydrolyzate.

我们首次合成了一个双吡啶鎓超分子化合物和六个过渡金属配合物，并通过IR谱，元素分析和X-ray晶体衍射分析对它们进行了表征。X-ray晶体结构分析表明：超分子化合物[H_2L1·(NO_3)_2·(H_2O)_2]_n是由多种氢键和芳香环间的π-π堆积作用构建的三维无限结构；[HgI_2(L1)·1.5CH_3OH]_n是一维锯齿状配位聚合物；(HgI_2L2)_2·3H_2O是双核金属大环化合物；[Co_2(L2)_2·2CH_3OH]_n是具有一维双螺旋结构的配位聚合物；[Co_2(L3)_2·CH_3OH·CH_3CN]_n为一维双链结构的配位聚合物；以及由非直线形配体L3在金属离子Cu和Cd的诱导作用下发生水解，并且金属离子与水解产物——异烟酸根离子自组装，形成了三维氢键超分子化合物[Cu(C_5H_4NCOO)_2(H_2O)_2]·H_2O和三维配位聚合物{[Cd(C_5H_6NCOO)_2H_2O]·DMF}_n。

On the basis of the above discussion, Emily Dickinson is worthy to be a great precursor of modernism.

基于以上的讨论，艾米莉·狄金森成为当之无愧的现代主义的先驱。

The phase transition, surface morphology and cyclic voltammetric performance from precursor RuCl3·cH2O to amorphous and crystalline RuO2·nH2O of the developed film were studied with X-ray diffractometer, infrared spectrometer, differential thermal analyzer, scanning electron microscope and electrochemical analyzer, respectively.

用X射线衍射仪、红外光谱仪、差热分析仪、扫描电镜和电化学分析仪，研究前驱体RuCl3·cH2O转化为RuO2·nH2O的物相演变行为以及微观组织形貌和循环伏安性能。

In this dissertation, the more denoting β-diketone ligand is used to weaken the electrophilic property of Ti center to obtain a complex for use as a catalyst precursor to polymerize ethylene, vinyl pyridine and acrylonitrile.

如何通过化学或物理化学方法来调节活性中心与非极性烯烃、活性中心与极性单体这两者之间的性能差异，使之同时能适应两类单体聚合无疑是很重要的。

The resulting materials were characterized by x-ray diffraction, Fourier transform infrared spectroscopy, Nuclear magnetic resonance and Photoluminescence. Those spectra reveal that by adding SiO2 to YAG:Ce precursor, the lattice constant decreases while vacancies are generate due to the co-dopant ions (Si4+) replaces in the place of Al3+ sites of YAG:Ce system. YAG:Ce phosphors with Y3+ dodecahedral site replaced by Ce3+ and diffused effectively as an activator, as a result the photoluminescence intensity increased about ~20-30%.

研究成果显示，掺杂SiO2之YAG：Ce萤光粉经过高温热处理后，由X光绕射、红外线吸收光谱仪以及核磁共振可以得知，当SiO2添加量增加时，YAG：Ce晶格常数会因为Si4+取代Al3+的四面体晶格位置而变小，同时产生将YAG：Ce之铝离子空位缺陷，使活化中心更有效地在YAG：Ce主体中扩散取代Y3+的十二面体晶格位置，提高其发光性质约20~35%。

Meid Dore Gold writing recently said that Islam's claim to Jerusalem is not so much religious as political, and 'their capture' of Jerusalem is a precursor to the hoped for eventual fall of the entire west.

多尔戈尔德写作日前表示，伊斯兰教的声称耶路撒冷是没有这么多宗教作为政治，'他们捕获'的耶路撒冷是一个前兆所希望的最终垮台，整个西方。

There are neural precursor cells that can divide and proliferate in rat DRG. They can differentiate into neuron and glial cells.

大鼠DRG内存在有分裂增殖的神经前体细胞，这些细胞可以分化为神经元和神经胶质细胞。

The former is to prepare polymolybdates coordinated' directly by organic ligands using Na2MoO4 and MoO3 precursors; The latter plays emphasis on exploiting a simple and effective routine to synthesize Keggin polytungstates in which the transition metal or Si acts as the heteratom by reaction precursor Na2WO4.We have synthesized a 4,4'-bipyridine bridging dumbbell-like polymolybdates a metatungs...

前者主要是制备有机配体键合的多金属钼酸盐；后者重点是探索出一个简易、有效的合成过渡金属或主族元素硅作杂原子的Keggin多金属钨酸盐的方法，然后通过变换过渡金属或有机配体的种类探讨对产物结构的影响，再对所得化合物的结构和组成通过物理测试手段进行表征，同时研究其在光、电、磁等方面的性质。

The French are not suggesting a new EU treaty, but they have plenty of other wheezes.

法国人并不是在建议签署一个新的欧盟条约，但他们有许多其他的阴谋。

This letter was written by my brother.

这封信是我弟弟写的。