Mountain ice-snow meltwater, atmospheric precipitation and spring water in bedrock fissures form surface runoff and enter piedmont basin at the outlet of the mountain, the transformation between surface water and groundwater is frequent, in naturat conditions, more than 80% of surface water infiltrates into alluvial piedmont aquifer of coarse grains and huge thickness.
山区冰雪融水、大气降水以及基岩裂隙泉水形成的地表径流从出山口进入山前盆地后，地表水与地下水转化频繁，天然条件下大约有80％以上的地表水渗入到山前大厚层粗粒冲洪积层，在绿洲带大约有40％的水又以泉的形式排出成为地表水。
The supplementation of groundwater from precipitation infiltration or its transformation into atmospheric water through evaporation are realized by the increment, decrement or transportation of water in aeration zone constituents under the action of hydraulic gradient in rock and soil.
水文地质意义；降水入渗；补给地下水；含水率；水势梯度；变化幅度；岩土；包气带水；降水入渗补给地下水或者地下水蒸发转化为大气水，都是在岩土水势梯度作用下，通过包气带水分量的增加、减少和传输实现的。
By using Mexican-Hat wavelet transformation, multi-temporal-scale variations of mean temperature and annual precipitation in the past 50 years(1951~2000) in Zhanjiang and Shaoguan are discussed, as well as the abrupt change points of climate are identified.
利用MHAT小波函数分析了湛江和韶关两地近50年平均气温和年降水量多时间尺度的演变特征，并对其气候突变进行了初步分析。
The contribution of precipitation is not significant. The transformation of cultivated sloppy land into terraced field leads to the change of soil and water loss.
耕地面积变化和地表属性变化引起的水土流失变化具有显著的相关性，坡耕地改梯田的农田水利建设可能是导致水土流失变化的主要原因。
In order to obtain an optimum pass schedule structure during hot rolling and to determine the cooling strategy, the metallurgical phenomena involved in recrystallization, grain coarsening, transformation and the precipitation behaviour have to be taken into account.
为了在热轧过程中得到一个最优的通过时间表结构以及决定冷却的策略，则包括再结晶、晶粒粗化、转化以及沉淀过程的冶金工业必须加以考虑。
This thesis is focused on the welding physical metallurgy of new ultrafine microstructure steel, which was processed by RPC (Relaxation-Precipitation-Controlling transformation) technique.
本文对采用驰豫-析出-控制相变工艺（RPC）生产的新型超细组织钢进行了焊接物理冶金现象与规律的系统研究。
The Carbide Precipitation of High-carbon Chromium Steel During Isothermal Transformation
高碳铬钢中等温转变下的碳化物析出
Application of High Performance Coagulating and Precipitation Technology in Transformation of Clarifying Basin
高效混凝沉淀技术在澄清池改造中的应用
The cloud structure, the transformation between a variety of wet material and the formation mechanism of rain are significantly different in precipitation cloud system simulated.
降水发展的不同时段，云内结构、各种湿物质之间的转化关系和雨水形成机制都存在明显差异。
Taking amount of precipitation as an input and one of water resources as an output, a computing model and mechanism is set up for 3-types water (precipitation, surface and ground water) transformation each other in Liaoning province.
辽宁省水资源三水转化计算模型，它以降水为输入，以计算水资源量为输出，建立降水、地表水、地下水三水转化的机制及模型结构。
The united model consists of water model and phosphorus solute model, so transfer, transformation and precipitation can be considered synthetically.
联合模型包括水运动模型和溶质运动模型两部分，综合考虑磷在土壤中迁移、转化和沉淀等过程。
Precipitation and transformation of the second carbides in isothermal tempered high CONI alloy steel
高CoNi合金钢中二次碳化物的析出与转化
Also, Fourier transformation and wavelet analysis were used to extract the main periods of precipitation series; least square method, wavelet analysis method and Mann-kendall method were adopted to analyze the precipitation trend. The spatial variation analysis is based on the spatial interpolation.
在降雨时间序列分析时，采用傅里叶变换和小波分析法提取序列主周期，并用方差比法对主周期进行检验：采用趋势线法、小波分析法和Mann-Kendall法对降雨量序列进行趋势分析。
The effects of thermo-high magnetic field coupled aging treatment on the precipitation of Ti_3Ni_4 and phase transformation behavior of Ti-50.6% Ni (mole fraction) shape memory alloy were investigated by differential scanning calorimetry (DSC) and transmission electron microscopy (TEM).
采用示差扫描量热仪（DSC）和透射电子显微镜（TEM），研究热/强磁场耦合时效对Ti-50.6%Ni（摩尔分数）形状记忆合金中Ti3Ni4相析出及相变行为的影响。
The formation and transformation mechanism of " single peak pattern " and " double peak pattern " of precipitation distribution over Guangxi during flood season are also analyzed. The variation of frequency of tropical cyclone is the main cause for the irregularity of peak value appearance of precipitaion.
分析了广西各地主汛期雨量分布的“单峰型”和“双峰型”形成原因以及单双峰型的转换机理，指出影响广西的热带气旋频数大小的变化，是后汛期峰值时隐时现的主要原因。
At first, the components of Rat Trapping were separated by stepwise precipitation using suitable solvents. Then, the chemical structure of these components were characterized by Fourier Transformation infared spectrometer and Nuclear Magnetic Resonance spectrometer.
首先使用适当溶剂，通过分级沉淀分离粘鼠胶的各组分，然后用傅立叶变换红外光谱仪、核磁共振波谱仪对分离后的组分进行结构鉴定。
When the high speed steel is in a quenched and tempered state, the transformation of excess austenite is not the wain process of transformation during deep freezing and uniform precipitation of a great amount of fine carbides is the main cause of strenthening.
淬回火态高速钢深冷处理时，残余奥氏体转变不是主要转变过程，大量微细碳化物弥散均匀析出是其强化主要原因。
A low-thermal-expansion ceramic composite of ZrO2-ZrW2O8 was synthesized by co-precipitation route using analytically pure zirconium nitrate [ZrO(NO3)2·5H2O] and ammonium tungstate(H40N10O41W12· x H2O) as starting materials. Effects of heat-treatment on the transformation from the precursor to ZrO2-ZrW2O8 composite were investigated, and the chemical reaction process of the precursor was explored.
以硝酸氧锆[ZrO(NO3)2·5H2O]和钨酸铵(H40N10O41W12· x H2O)为原料，采用共沉淀法合成了低热膨胀的ZrO2-ZrW2O8复合陶瓷，着重研究了不同热处理条件对前驱体转变为ZrO2-ZrW2O8复合陶瓷的影响，并探讨了前驱体生成及其转变的反应历程。
The purpose of the present study is to investigate the interaction between Nb precipitation and deformation induced ferrite transformation during deformation.
本文试图通过实验，了解Nb在变形过程中析出的变化规律和变形诱导铁素体相变形核的变化规律，初步探索两者的相互作用关系。
Thus, the effects of deformation on phase transformation and carbide precipitation are necessarily studied for depth.
由于该钢碳化物析出的孕育期短，因而晶间腐蚀敏感性强。