查询词典 H2O

After that, we use TLM, which possess more sensitive property to UV light. With different concentrations, alcohol solvents, and concentrations of 20% MeOH/H2O, to look forward to find out the exact photokinetic model of TLM.

而后再以光动力学反应较快之托美丁以不同浓度、不同醇类溶媒、不同含水的甲醇溶液以期盼研究出托美丁的光动力学模式。

A series of polyaluminum silicate chloride with has basicity 2.0 and different Al/Si molar ratio, was prepared by means of two kinds of preparation methods: one is to add NaOH into AlC l3 6H 2O and polysilicic acid mixed solution at different Al/Si molar ratio, the other is to add polysilicic acid into polyaluminum chloride(PAC solution with different B at different Al/Si molar ratio.

一种方法是将 Na Cl 加入到不同 Al／ Si 摩尔比的 Al Cl3（6 H2O 和聚硅酸混合液中；另一种方法是按一定的 Al／ Si 摩尔比将聚硅酸加入到聚合氯化铝液中。

Thus, a metamorphic peak should represent a point at which the metamorphic p-T path becomes tangential to a H2O-content contour or at which dehydration reactions complete and just start to rehydrate. It may not correspond to the maximum temperature and pressure reached along a p-T path.

因此，从岩石中的实际矿物组合所得到的&变质峰期&应该理解为脱水反应结束，并可能发生少量水化反应的位置，并不一定对应p-T轨迹所经历的实际峰期温度或压力。

The method adopts the following steps: after mixed, phosphorus source, silicon source, aluminum source, an organic template agent, water and a precursor of the SAPO molecular sieve are hydrothermally crystallized for at least 0.1 hour at the temperature ranging from 110 to 260 DEG C to obtain the SAPO molecular sieve; wherein, the preparation method for the precursor of the SAPO molecular sieve has the following steps:, the molar ratio is 0.03 to 0.6 R:(Si0.01 to 0.98: Al 0.01 to 0.6: P0.01 to 0.6): 2 to 500 H2O; wherein, R stands for mixture solution of raw materials which is blended by the phosphorus source, the silicon source, the aluminum source, the an organic template agent and water of the template agent;, the mixture solution of raw materials prepared in step reacts at the temperature which is at least 50 DEG C lower than the crystallization temperature for at least 0.1 hour.

本发明通过采用包括以下步骤：将磷源、硅源、铝源、有机模板剂、水和SAPO分子筛前驱体混合后在110～260℃的温度下水热晶化至少0.1小时获得SAPO分子筛；其中SAPO分子筛的前驱体的制备包括以下步骤：将摩尔配比为0.03～0.6R∶(Si0.01～0.98∶Al0.01～0.6∶P0.01～0.6)∶2～500H 2 O，式中R代表模板剂的磷源、硅源、铝源、有机模板剂和水混合成原料混合液；将步骤制备的原料混合液在低于晶化温度至少50℃的温度下反应至少0.1小时的技术方案较好地解决了该问题，可应用于含氧化合物制烯烃催化剂的制备过程。

The reactions of pyridine-2-carbaldehyde semicarbazone with transition metal Ni(II,Cosalts afford two pyridine-2-carbaldehyde semicarbazone transition metal compounds.

配合物[CoL2]·(ClO4)2·H2O(3)，分子式C14H18Cl2CoN8O11，Mr=604.19，属三斜晶系，空间群P-1，晶胞参数：a=9.984(3) A， b=11.082(4) A， c=12.196(5) A ，Dc=1.769Mg/m3，α=112.954(4)°，β=110.050(4)°，γ=94.017(3)°，V=1134.4(7) A3， Z=2，μ=1.067mm-1， F(000)=614，结构偏离因子R=0.0501 和ωR=0.1028，配合物(3)的中心金属离子采取六配位的变形八面体。

Thin layers of stannic phosphate have been used to study the chroma-tographic behaviour of 44 metal ion in DMSO-nitric acid systems and DMSO-H2O systems.

故选择适当比例的DMSO-HNO_3和DMSO-H_2O为混合溶剂系统，利用磷酸锡对某些金属离子的选择性，可使许多金属离子相互分离。

After studying the changes of photosynthetic rate, the activities and contents of Rubisco, Rubisco activase with Varies environmental conditions(such as light, H2O; temperature; CO2, nitrogen fertilizer, and source-sink limitation etc.), We enclosed that environmental conditions effect photosynthetic rate by change the activities of Rubisco and stomatic conductance.

研究了各种外界条件(光、水、温、CO_2、氮肥、限源限库)对光合作用和Rubisco、Rubisco活化酶的作用，揭示了外界因素是通过改变气孔导度和Rubisco的初始活力来影响光合速率的。

In my work, mesoporous lamellar zincum sulfide is synthesized by hydrothermal techniques, with CTAB as templates and Zinc acetate and sulfourea as precursors. The best reactive condition is as follows: the ratio of reactive components is CTAB:Zinc acetate:sulfourea:water=1:3:10:1388; the volume of pH is 4.4; the best hydrothermal parameter is 100℃ for 48h.

以十六烷基三甲基溴化铵为模板剂合成层状介孔硫化锌的最佳反应条件为CTAB：Zn2：(NH2)CS：H2O=1：3：10：1388，pH值范围为3.8-5.8， 100℃下水热48h，此时得到的样品呈现一套层状介孔结构，相应的晶面间距为33.0 A，16.7 A，11.1 A。

A highly sensitive and selective assay method of biological macromolecules is proposed based on the measurements of BRLS signals at water/tetrachloromethane (H2O/CCl4) interface.

本文在普通RLS技术的基础上，设计了后向光散射(Backward resonance lightscattering，BRLS)信号检测装置，通过检测后向的共振光散射信号，实现了对生物大分子的高灵敏及高选择性分析。

Through cyclic hydrogen bonding with motif formed by coordinated water molecules and coordinated hydroxyl groups of dhbd from adjacent tetranuclear units, these adjacent neighbors are connected to afford a 1D supramolecular chain along axis a, which is further extended via aromatic intercalations and other crystallization water molecules into a 3D structure with channels.

毗邻的四核单元通过配位H2O分子和配位羟基O原子形成的 R 22(8)型环形氢键桥的连接，沿a轴方向构建了四核单元交替相连的一维超分子链；链间籍苯环的π-π堆积作用和晶格水分子氢键链的连接进一步扩展为具有隧道的三维结构。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。