盐分析法

In this investigation,the composition of copolymer P(AM- co -NaAMPS) of acrylamide and 2-acrylamido-2-methyl-propanesulfonate sodium has been determined with the aqueous solution of cetyl trimethyl ammonium bromide as titrant at a concentration of 0.001 mol·L-1 by conductometric titration method.

与元素分析进行比较的结果表明，上述复合作用电导滴定法可作为测定水溶性大分子链中磺酸盐单体含量的方便而又准确的方法，而且预计还可用作为测定水溶性大分子链中其它离子性基团含量的简捷方法。

A trivalent plant expression vector containing Bt cry1Ah gene, cry1Ie gene and glyphosate-tolerant 2mG2-epsps gene was constructed, glyphosate isopropylamine salt as a screening agent, 2mG2-epsps gene as a selectable maker gene. The vector was transfer into maize immature embryonic calli by microprojectile bombardment, and 69 T0 generation plants were obtained. PCR analysis showed that 17 plants had the integration of insect-resistant cry1Ah, cry1Ie gene and glyphosate-tolerance 2mG2-epsps gene.

同时构建了含有Bt cry1Ah和cry1Ie基因和耐草甘膦2mG2-epsps基因的三价植物表达载体，通过基因枪轰击法转化玉米愈伤组织，以2mG2-epsps为筛选标记基因，以草甘膦异丙胺盐作为筛选剂，获得T0代转化植株69株，PCR检测结果表明：有17株已完整的整合有抗虫基因cry1Ah、cry1Ie和耐草甘膦基因2mG2-epsps的3个目的基因，RT-PCR分析外源基因可以正确转录，已获得结实转基因植株。

The isolated strains were subjected to phenotypical study,salt-aggregation test and rDNA ITS sequencing.

对获取的活性菌株进行形态特征研究、盐需求测试、核糖体rDNA ITS区序列分析，并将所测得序列在NCBI数据库中进行相似性搜索，选取其中相似性较高的序列以邻接法构建系统进化树，将该菌株分类鉴定到种。

According to the complexity of the sulphate salty soil,the paper analyzes the harm and the cause of the sulphate salty soil from the salt expansion,the collapsibility and the corrosion,studies the dynamic compaction to eliminate the collapsibility of the sulphate salty soil foundation,and puts forward the anti-corrosion measures.

针对盐渍土问题的复杂性，从盐胀性、溶陷性、腐蚀性方面分析了硫酸盐渍土的危害及其产生原因，结合具体情况，对强夯法消除硫酸盐渍土地基的溶陷性进行了研究，并提出了防腐处理措施，通过实际工程中的成功应用说明了该方法的可行性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。