By the field experiment,the changes of eigenvalues such as salt-composition、pH、alkalinity、permeability and hardness of soil in the process of improving alkaline soil with desulfurized gypsum were investigated.
本文通过田间试验,研究了脱硫石膏在改良碱土过程中对碱土特征值(盐分组成、pH值、碱化度、土壤渗透性及硬度)的影响。
China is rich in rare earth and alkaline earth elements.
结合我国富有资源稀土和碱土,介绍了稀土和碱土在镁合金中的作用和影响,概括了它们在Mg-Al系耐热镁合金中的应用现状,以及在研制汽车用耐热镁合金中所发挥的重要作用。
On the bases of simulation experiments in laboratory,the effects of sand fragments and sand sizes on saturated hydraulic conductivity(Ks10) of sodic soil,electrical conductivity(EC) and pH of leachates were investigated,and relationships between Ks10 and EC of leachates,Ks10 and pH of leachates were established.
为探求碱土饱和导水率与出流液电导率及pH之间的关系,采用室内模拟实验对含沙粒碱土的饱和导水率、出流液电导率及pH进行测定,分析了沙粒添加量和粒径对碱土饱和导水率、出流液电导率及pH的影响。
The results indicated that the soil total salt at the research area was generally less than the saline target (<5 g/kg),the total alkalioity was bigger than alkali soil target(>2.
结果表明:研究区梭梭林立地土壤具有总盐含量普遍小于盐化指标(<5 g/kg)、总碱度大于碱土指标(>2。
The characteristics of deoxidization of alkaline-earth metals-contained compound alloys has been introduced in this paper, conclusion can be drawn that it will be promising developing alkaline-earth metals-contained alloys which can be applied in purified steel manufacture.
介绍了碱土复合合金的脱氧特性,指出开发适用于纯净钢的碱土金属复合合金有重要的应用价值。
The practice shows that the control and refinment are selected to produce pure alkaline-earth metalscompound alloys.
指出杂质的控制与精炼是生产纯净碱土复合铁合金的必然选择。
ionized alkaline earth metal laser
碱土金属离子激光器
alkaline-earth metals and their compounds
碱土金属及其化合物
optical element of the halides of the alkali or alkaline-earth metals, unmounted
碱金属或碱土金属卤化物光学元件,未装配的
Synthesis and characterization of alkaki·alkaline-earth salts of molybdovanadoarsenic acid;
碱金属碱土金属钼钒砷杂多酸盐的合成与表征
Synthesis and Characteristics of Alkaline Titanate and Alkaline Earth Titanate
碱金属与碱土金属钛酸盐的制备及性能研究
THE COMPARISON OF SALINE-ALKALIPROPERTIES IN SEASHORE SALINE AND ALKALINE SOIL IN THE DESALINIZATION IN JIANGSU
江苏滨海盐土与花碱土脱盐过程中盐碱性状变化的异同
Thermodynamic Optimization and Calculation of Phase Diagrams Related to the Rare Earth Halides with the Alkali Halides or Alkaline Halides;
稀土卤化物与碱金属及碱土金属卤化物相图的热力学优化与计算
Studies on the Nutritional Modifier on the Melioration of Saline Alkali Soil in Western Region in Jilin Province;
吉林省西部重盐碱土营养调理剂改良碱土的研究
alkaline soils derived from chalk or limestone.
从白垩或者石灰石中得到的碱土。
Spectral Characteristics of Pr~(3+) in Titanate;
碱土金属钛酸盐中镨离子的光谱特性
Alkaline Earth Metal Modified SAPO-34 Used for Methanol Conversion to Light Olefins
碱土金属改性SAPO-34催化甲醇制烯烃
Development of Alkaline-earth and Heat-resistent AM80-Ca-Sr Magnesium Alloys
AM80-Ca-Sr碱土耐热镁合金研究
Standard ofr maximum alkali content in concrete
混凝土碱含量限值标准
The alkaline inclination of the local waters.
地方水土的碱性倾向
The activity to Alkali of Concrete Aggregates in Beijing Area and Their Alkali Aggregate Reaction
北京地区混凝土集料的碱活性及碱-集料反应
The factors causing soil salinization include natural factors such as climate, hydrological and geological conditions, and human-made factors, such as irrigation patterns and cultivating system.
盐渍化土壤类型主要为典型盐土、沼泽盐土、碱化盐土和干旱盐土。
The place was sown with salt.
这块土地又给洒上了碱水。
This lowers the water table and reduces soil alkalinization.
这可降低水位,减少土壤的碱份。