查询词典 H2O

It is often said that in Kripkean cases, conceivability does not entail possibility: it is conceivable that water is not H2O (in that it is coherent to suppose that water is not H2O), but it is not possible that water is not H2O.

在Kripke式例子中，常常被认为'可设想'并不导出'可能'：可设想水不是H2O（因为假设水不是H2O，这是融贯的），但水不是H2O是不可能的。

Isopiestic measurements have been carried out at 298.15K for the quaternary aqueous solution H2O+KCl+NaCl+NH4Cl saturated with potassium chloride and its ternary sub-systems H2O+KCl+NaCl and H2O+KCl+NH4Cl.

在298.15K条件下采用等压实验方法对KCl饱和的四元水溶液体系H2O+KCl+NaCl+NH4Cl及其两个三元亚系H2O+KCl+NaCl和H2O+KCl+NH4Cl进行了研究。

In this thesis, a series of complexes based on aromatic multicarboxylic acids have been successfully synthesized in solutions or under hydrothermal conditions. Their structure and properties are investigated.(1) Eight complex compounds have been synthesized and characterized by X-ray single crystal diffractive technology: The eight complexes are listed as following: [Cu242] complex 1 [Cd22(H2O)4]·4H2O complex 2 [Co(H2btc)(H2O)3] complex 3 [Co2(H2O)2]·H2O complex 4 [Ni22(H2O)4] complex 5 [Cu22(H2O)4] complex 6 [Co(H2biim)2(H2O)2](H2btc) complex 7 [Zn(H2biim)2(H2O)2](H2btc) complex 8 The structure of complex 1 is dinuclear complex resulted from weak interactions（0-D chain）; complex 2 is 1-D chain stucture result from interactions of water molecules; complex 3、4、5、6 are coordination polymers using hydrothermal synthses, where the first kind ligand is H4btc, the second kind ligand is phen and Co2+、Ni2+、Cu2+ as center ions, respectively. While the coordination enviroment of Co2+ is the same in complex 3, the coordination geometries around the Co atoms in complex 4 are obviously different because of the different reaction conditions. In complex 4, the 1-D chains are connected into 2-D layer through carboxy groups of ligand H4btc. The structures of complex 5、6 are 1-D chain stucture result from interactions of carboxy groups in ligand H4btc. Complex 7、8 are homeomorphy compounds. Either of them are linked to the 3-D chains through intermolecular hydrogen bonds. Each H4btc lose two protons and H2btc2- acts as negative electron balance.

合成了8个结构新颖的配合物，并用X-射线单晶结构分析方法确定了晶体结构，分别为： [Cu242] 配合物1 [Cd22(H2O)4]·4H2O 配合物2 [Co(H2btc)(H2O)3] 配合物3 [Co2(H2O)2]·H2O 配合物4 [Ni22(H2O)4] 配合物5 [Cu22(H2O)4] 配合物6 [Co(H2biim)2(H2O)2](H2btc)配合物7 [Zn(H2biim)2(H2O)2](H2btc)配合物8 配合物1是一个依靠弱作用连接的双核铜结构；配合物2借助水分子形成一维链状结构；配合物3、4、5、6是以H4btc为第一配体、phen为第二配体，通过水热法合成的配合物，其中，Co2+、Ni2+、Cu2+为中心离子；配合物3中的二价钴离子具有相同的配位环境，不同反应条件下得到的配合物4中的二价钴离子存在不同的配位环境，在配合物4中，一维链通过H4btc上的羧基形成一个二维层结构；配合物5、6是借助H4btc上的羧基形成的一维链状结构；配合物7、8属于异质同晶结构，它们的分子通过分子间氢键形成三维网状结构，H4btc上的羧基失去2个质子，作为一个二价负离子起到电荷平衡作用。

They are most abundant in quartz of pegmatitic leucosomes and granitic rocks, and represent the fluid appearing in their cooling stage. The DL(H2O) of such fluid is 0.93～0.96g/cm3 corresponding to P≈0.6GPa which is compatible with condition when the rapid decompression in this region was ended. 3 CO2-H2O two or three phases inclusions. They are the most widespread, and more frequently in clusters and in intragranular tails in quartz. The relative content of CO2+CH4 and H2O is considerably variable. They are also characterized with lower density (0.6～0.8g/cm3) and low pressure about 0.3～0.4GPa, and may be originated by mixture of carbonic liquid from breaking of most inclusions of peak stage and aqueous liquid of magmatic source. After entrapment, the further decrease of temperature to lower than 330℃ made such fluid separated to two or three phases.

主要集中于伟晶质脉体和花岗岩中，是这期岩浆冷凝过程析出的流体相当时就被封闭所成，密度为0.93～0.96g/cm3，相应压力约0.6GPa，这与峰期后迅速减压过程结束时的条件相符。3CO2-H2O两相和多相包体，分布最广，成簇状和拖尾状包体群，碳质和H2O相对含量很不均匀，整体密度相对最低，一般为0.6～0.8g/cm3，相应压力为0.3～0.4GPa，它们可能是大幅度减压过程中第一类包体大量爆裂析出的碳质流体与第二类H2O溶液流体在各处以不同比例混溶所成，它们被封闭后在降温至330℃以下时分裂成两相或三相包体。

In the present paper, the silver-intermediate in development process of PTG material-disilver phthalate (Ag2PA) was prepared by the liquid deposition method, and Ag2PHZ2PA·H2O complex was synthesized successfully by liquid dispersion means using Ag2PA and phthalazine as the reactants. The composition of Ag2PA and Ag2PHZ2PA·H2O was determined by ICP-AES and elemental analysis,...

采用液相沉淀法合成了PTG材料热显成像过程的含银中间体邻苯二甲酸二银(Ag2PA)，并进一步使其与酞嗪络合形成了Ag2PHZ2PA.H2O配合物，通过元素分析、电感耦合等离子体原子发射光谱分析对Ag2PA与Ag2PHZ2PA.H2O配合物的元素组成进行了确定，采用X射线粉末衍射分析、傅里叶变换红外光谱分析以及热分析等方法对Ag2PA与Ag2PHZ2PA.H2O进行了表征，实现了对PTG材料热显成像过程含银中间体的定性分析。

Pure phase FER zeolite and siliceous FER zeolite have been synthesized in the systems of tetramethyl ethylene diamine- Na2O- SiO2 - Al2O3 - H2O, Na2O - K2O - Al2O3 - SiO2 - H2O -HCO3-- CO32-, and pyridine - propylamine- HF- SiO2 - H2O respectively.

在TMEDA-Na2O-SiO2-Al2O3-H2O体系，Na2O-K2O-Al2O3-SiO2-H2O-HCO3--CO32-体系及Py-PrNH2-HF-SiO2-H2O体系中，分别合成了纯相FER沸石及FER硅沸石。

Located in the prospecting lines Nos.47 and 37-33 on the middle 270m section, the mineral typomorphic characteristics are as follows: pyrite possesses the combination of octahedron with pyritohedron, pyritohedron with octahedron, etc It appearsas hole-centre and mix center conduction, if being electron-centre conduction, the absolute magnitudes of thermoelectromotive force and thermoelectromotive coefficient of pyrite are bigger relatively; pyrite contains Cu; the relative absorbency in quartz D(subscript H2O0.9403, D(subscript CO2)0.1961, D(subscript CO2)/D(subscript H2O)0.2591 in prospecting lines 37-33 is smaller than average D(subscript H2O1.3267, D(subscript CO2)0.3090, D(subscript CO2)/D(subscript H2O)0.338 2 in the deposit.

江西茅排金矿区270m中段47勘探线及37~33勘探线的矿物标型特征为：黄铁矿形态见有八面体和五角十二面体，五角十二面体和八面体等聚形；出现空穴心型导电和混合型导电黄铁矿，若为电子心型导电黄铁矿，其热电动势和热电系数的绝对值相对较大；黄铁矿成分中检测出Cu；石英相对吸光度（37~33勘探线）D(下标 H2O)0.9403，D(下标 CO2)0.1961，D(下标 CO2)/D(下标 H2O)0.2591，略低于矿区研究样品的平均值D(下标 H2O1.3267，D(下标 CO2)0.3090，D(下标 CO2)/D(下标 H2O)0.3382。

MUCP、MDP and BC were improved in group Ⅰ after cord untethering, 32 cm H2O±14 cm H2O、 21 cm H2O±12 cm H2O、9.5 ml/cm H2O±1.3 ml/cm H2O postoperatively and 63 cm H2O±245 cm H2O、37 cm H2O±156 cm H2O、5.1 ml/cm H2O±0.8 ml/cm H2O preoperatively respectively,while in group Ⅱremained unchangable.

组术后MUCP为32 ml/cm H2O±14 cm H2O，MDP为21 ml/cm H2O±12 cm H2O，BC为9.5 ml/cm H2O±1.3 ml/cm H2O，较术前63 ml/cm H2O±25 cm H2O、37 ml/cm H2O±16 cm H2O和5.1 ml/cm H2O±0.8 ml/cm H2O明显改善；Ⅱ组术后MUCP、MDP和BC较术前无明显变化。

The calculating models of mass action concentration for electrolyte aqueous chloride solutions KBr-H2O, NH4Br-H2O, and ZnBr2-H2O were founded at 298.15 K to calculate the molalities before saturation according to the ion and molecule coexistence theory and the mass action law.

建立了强电解质水溶液KBr-H2O、NH4Br-H2O和ZnBr2-H2O作用浓度的计算模型，计算了上述三个溴化物二元水溶液体系在温度为298.15K、质量摩尔浓度达到饱和前的作用浓度。

The present paper reports three new europium complexes,EuL3(H2O) 6,EuL3Phen(H2O)4 and EuL3(H2O)5,synthesized with Eu(NO3) 3·6H2O,2-(4-fluorobenzoyl) benzoic acid,Phen and TPPOL=2-(4-fluorobenzoyl benzoic acid,Phen=1,10-phenanthroline,TPPO=triphenyl phosphine oxide.

以硝酸铕、2-(4-氟代苯甲酰基)苯甲酸、1，10-菲咯啉和三苯基氧膦合成了EuL 3(H2O)6，EuL3Phen(H2O) 4和EuL3(H2O)5三种固态配合物。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。