碱土

Based on the measurement of salt content and electrical conductivity in soda solonetz soil as well as in groundwater in Da'an City,Jilin Province,the relationship between the salt content and electric conductivity was determined.

分别测定了吉林省大安市苏打碱土含盐量与电导率以及地下水含盐量与电导率，分析了含盐量与电导率的关系。

Soda solonetz ; salt content ; electrical conductivity ; Da'an City

苏打碱土；含盐量；电导率；大安市

When water is added in increasingamounts to the normal soil,there is no increase in pH values of the suc-cessive filtrates and the pH of the distilled water is easily obtained,whilstthe pH value of the alkali soils falls very gradually to a ...

水土比例增大时，普通土壤各次滤液的pH 值并不增大，且易于达到蒸馏水的pH 值，反之，碱土的pH 值很慢的降低至pH 7.5。

This is discovered and put forward firstly by this paper, it established theory base for seting up the binary structure improvement tier alkaline soil improving, and a bit of times without number washing flooding. In improvement process of alkaline soil, the seepage capacity of gypsum was preponderated over 40% than the used capacity of gypsum.

关于石膏混合层与非混合层，在土壤改良过程中，各自具有不同量变到质变的规律，是本文首先发现并提出来的：它为建立碱土改良的二元结构计划改良层并与小定额分次冲洗相结合灌溉，奠定了理论基础。

Relationships between ionic strength and ionic activity coefficient were analyzed.

以吉林省西部典型苏打碱土区为例，对地下水离子强度和离子活度进行了计算，讨论了离子强度与各离子活度系数之间的关系。

The practice shows that the control and refinment are selected to produce pure alkaline-earth metals compound 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。

Based on the features of alkaline-earth metals ,this paper aims to analyze the function of such elements as Be,Ca,Sr,Ba in magnesium alloys.

并着重指出镁合金中碱土金属间的交互作用以及碱土金属于非碱土金属间的交互作用，从而探究碱土镁合金的开发之路。

And the catalytic activity for NO decomposition was also tested. At the same time, H2-TPR measurement was performed to explore the effect of substituting alkaline-earth metals for La on redox-capability, which resulted in the change of catalytic capability.

考察了该系列催化剂催化分解NO的活性，并利用H2-TPR技术研究了不同碱土元素取代时对复合氧化物催化剂的氧化还原能力的影响，从而影响了样品的催化性能。

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。

A series of perovskite oxides are synthesized by means of blend deposition using the nitrate of A and B as the raw materials, and ammonia or sodium carbonateas sedimentation .A includes alkaline-earth metals such as Mg, Ca, Sr, Ba and rare-earth metalsLa; while B includes transition metal Cr, Mn, Fe, Co and Ni.

本文以A，B的硝酸盐为原料，以氨水或碳酸钠为沉淀剂，利用混合沉淀的方法合成了系列钙钛矿型氧化物。A选碱土金属元素Mg、Ca、Sr、Ba等及稀土金属元素La；B选过渡金属元素Cr、Mn、Fe、Co、Ni等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。