碱性

Objective In order to understand the role of the immune function in the pathogenetic mechanism of multiple sclerosis. Method Antigangliosides GM1 antibody and cephalin antibody in serum (n=28) and cerebrospinal fluid (n=18) were examind in MS patients with ELISA assay.

目的 探讨多发性硬化的免疫发病机制方法采用ELISA方法测定多发性硬化患者活动期血清(28例)和脑脊液(18例)的GM1抗体、脑磷脂抗体和髓鞘碱性蛋白。

Results We found GM1 antibody in 36% and cephalin antibody in 43% of MS patients in serum,GM1 antibody in 11% and cephalin antibody 18% in cerebrospinal fluid.The levels of antibody in serum of treated_MS patients were significantly lower than those in active MS patients.The levels of myelin basic protein in serum and cerebrospinal fluid in MS were significantly higher than those in control group.

结果 多发性硬化患者血清GM1抗体阳性率 36%，脑磷脂抗体为43%；脑脊液GM1抗体为11%，脑磷脂抗体为18%，与对照组比较差异均有显著性；血清和脑脊液的髓鞘碱性蛋白增高亦有意义。

Results We found GM1 antibody in 36%and cephalin antibody in 43%of MS patients in serum,GM1 antibody in 11%and cephalin antibody 18%in cerebrospinal fluid.The levels of antibody in serum of treated_MS patients were significantly lower than those in active MS patients.

结果 多发性硬化患者血清GM1抗体阳性率为36%，脑磷脂抗体为43%；脑脊液GM1抗体为11%，脑磷脂抗体为18%，与对照组比较差异均有显著性；血清和脑脊液的髓鞘碱性蛋白增高亦有意义。

The presence of REE tetrad effects in apatites and whole rocks of S-type granites has been reported by Sha and Chappell (1999) and Zhao et al.(1999), respectively. The REE tetrad effect in minerals, such as apatite, spessartite, beryl, alkali feldspar and spodumene, from all zones of Altay No. 3 pegmatite has been found remarkable, and the fractionations among isovalent incompatible elements in these minerals are also significant. This paper puts forward that the REE tetrad effect is one of the basic features of peraluminous melts and the origin of REE tetrad effect might be probably related to some processes prior to the formation of pegmatite magma. The immiscibile liquid separation between silicate melt and hydrosaline melt may be responsible for it.

由于阿尔泰3号伟晶岩脉各带磷灰石以及与其共生的石榴石、绿柱石、碱性长石、锂辉石矿物均存在明显的稀土"四重效应"以及相同电价、相似离子半径的不相容元素间存在显著的分异，并结合最近赵振华等(1999)和Sha and Chappell(1999)报道S型花岗岩全岩和单矿物(磷灰石、独居石、长石、黄玉等)均存在稀土"四重效应"这一现象，本文研究提出，稀土"四重效应"是富挥发分过铝质岩浆体系的一个基本特征，其机制既不可能由含稀土的副矿物早期结晶引起残余熔体相中REE含量变化的结果，也不能定性地归因于流体相与熔体相相互作用过程中稀土元素在流体/熔体之间分异的结果，而很可能与伟晶岩岩浆形成之前某些过程密切相关，S型花岗岩岩浆在液相线以上存在硅酸盐熔体与高盐熔体的不混溶液相分离有可能是过铝质岩浆体系产生稀土"四重效应"的主要原因。

From the ionization constant and electrical neutral principle of weak acid solution, we can draw out chemical balance equation of acid radical ion of acid salt, electric charge conservation equation and supplies conservation equation.

根据弱酸的电离常数和溶液的电中性原理等，可导出其酸式酸根离子的化学平衡式、电荷守恒式和物料守恒式，判断酸式酸根离子所引起的溶液酸碱性及其强弱，从而得出定量判据

A set of the laboratory experiments were also performed to simulate the physical and chemical changes in the rain fall process and to study the factors affecting the pH value of cloud water.

以往的研究表明，大气中酸性物质的增加、碱性物质的减少或促使这种变化发生的条件的出现均为导致雨水酸化的决定因素。

Methods: In order to establish EAE model, the mixture of MBP and CFA was injected to sjl mouse, with injecting bacteria of chincough in vein.

使用牛脊髓髓鞘碱性蛋白与福氏免疫佐剂，辅以百日咳杆菌，制作EAE模型。

Acid phosphatase, alkaline phosphatase, and superoxide dismutase were found in the serum, blood cells and liver extract of Chlamys farreri . The activities of ACP and ALP were highest in the liver.

在栉孔扇贝的血清、血细胞和肝脏提取液中均发现有酸性磷酸酶、碱性磷酸酶和超氧化物歧化酶活性，其中，ACP和ALP在肝脏中的活性最高。

Results:It was found that all of these factors had influence on the stability of chloral hydrate.

结果 ：发现这些因素均影响水合氯醛的稳定性，其中以紫外线照射及碱性物质影响最大。

The alkali cellulose is then treated with chloromethane and propylene oxide to produce methylhydroxypropyl ethers of cellulose.

碱性纤维素然后被氯代甲烷和丙烯氧化物处理生产出甲基羟丙基纤维素。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！