查询词典 hydrothermal

Gold was precipitated from reduced,near-neutral pH solutions in a surficial environment due to mixing of boiling hydrothermal fluid.

金是在pH值近中性的浅表环境中由于热液沸腾并伴随流体的混合沉淀而成，通常富集于标高30—200m之间。

Two new complexes, [Mn22(H2bta)2(H2O)]n (1) and [Cu2(H2bta)0.5(H2O)]n (2)(H4bta＝1,2,4,5-benzene- tetracarboxylic acid, L＝imidazo[4,5-f][1,10]phenathroline) were prepared under hydrothermal conditions and their structures determined by single-crystal X-ray diffration.

在水热条件下合成了两个新的配合物，[Mn22(H2bta)2(H2O)]n和[Cu2(H2bta)0.5(H2O)]n，其中(H4bta=1，2，4，5-benzenetetracarboxylic acid， L= imidazo[4，5-f][1，10]phenathroline )，通过单晶X射线衍射仪对其结构进行了测定。

The powder of zinc oxide was synthesized in hydrothermal conditions with Zn(NO_3)_2·6H_2O as zinc source,and tetrapropylammonium hydroxideand tetramethylammonium hydroxideas alkaline source.

以六水硝酸锌为锌源，氢氧化四丙基铵和氢氧化四甲铵分别为碱源，进行了氧化锌粉末的水热制备。

The main contributions of this thesis are:(1) Seven mononuclear complexes of tetradentate ligand NTB have been obtained using N〓 or SCN〓 as the additional ligand;(2) Seventeen binuclear complexes of Fe , Zn , Co , Cu have been designed and the complexes of Co , Cu exhibit antiferromagnetic properties;(3) Changing the bridged-ligand such as PO〓, CO〓, o-phth, mai, Ag (CN 〓, Au 〓, etc , fourteen tetranuclear complexes of polypridine ligand have been synthesized;(4) Two antiferromagnetic 1D chain complexes of KH〓pdc ligand have been prepared from hydrothermal reactions; in addition, one ferromagnetic 1D chain copper complex of tpdp which is bridged by oxalate has been obtained.

本论文的主要贡献为：(1)合成了配体NTB的七个新型单核配合物；(2)合成了十七个铁、锌、钴及铜系列混桥双核配合物，其中双核钴和双核铜配合物为反铁磁偶合；(3)选用多吡啶配体tpdp和TPA，改变桥联配体，合成了十个四核配合物；(4)选择配体KH〓pdc，采用水热合成方法得到了反铁磁性一维链状锰、铜配合物；以草酸根为桥联配体，合成了配体tpdp的一维链状铜配合物，该化合物为铁磁偶合，文献较少报道。

Hydrothermal conditions in this area better than the Haihe Plain, more suitable for thermophilic cultivation of cotton and other crops.

本区水热条件优于海河平原，更适于喜温的棉花等作物的种植。

The characteristic of BMS silica mesostructure and the effect of various synthesis factor (including ammonia/silica molar ratio, composition concentration variation, surfactant alkyl chain length, auxiliary organic molecules such as trimethylbenzene, catalyst structure and properties, solvent and cosolvent volume and its polarity, aging and drying conditions and postsynthesis hydrothermal treatment and so on) on the resultant BMS silica structure and properties were assessed using a series of analytical techniques such as XRD, SEM, TEM,〓Si MAS NMR, TG-DTA and N〓 adsorption measurements.

结果显示BMS二氧化硅分子筛是由大量封装胶束的纳米二氧化硅颗粒（约为20-40nm）堆积形成的聚集体，其双介孔分布中较小的介孔起因于颗粒内部表面活性剂模板形成的介孔，我们称之为骨架介孔。它类似于我们在MCM-41中看到的介孔，可通过改变表面活性剂胶束的尺寸而在2.56-3.65nm的范围内进行调节。

The authors have made simulation experiments on the interactions of valcanic gas-hydrothermal solutions with subvolcanic-volcanic rocks (diaba- se, andesitic-tdff, a.ndesite and tuffaceous sandstone) based on field observa- tions of three iron ore deposits in volcanic rock areas of Cihai and Yamansu, Xinjiang and Huanggangliang, Inner Mongolia.

本文作者在火山岩地区的新疆磁海、雅满苏和内蒙黄岗梁三个铁矿床进行野外工作的基础上，模拟火山气热液与次火山岩-火山岩(辉绿岩、安山质凝灰岩、安山岩和凝灰质砂岩)相互作用。

Vitric tuff ; zeolite P ; hydrothermal reaction ; technics optimization ; pretreatment ; Linli Hunan

玻屑凝灰岩； P型沸石；水热反应；工艺优化；预处理；湖南临澧

Vitric tuff ; zeolite A ; hydrothermal reaction ; technics optimization

玻屑凝灰岩； A型沸石；水热反应；工艺优化

The technics flow is "the vitric tuff+Na0H+NaAlO2+H2O "→hydrothermal reaction→crystallization and syathesis→fi...

该合成工艺流程为；&玻屑凝灰岩＋碱＋铝酸钠＋水&→水热反应→晶化合成→过滤、洗涤→烘干→P型沸石产品。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷