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In order to discover acid-tolerant Rhizobium meliloti that can nodulate alfalfa high-effectively on acidic soil, researches were explored to isolate rhizobia from alfalfa nodules on acidic soil (pH5.2), methods based on the thesis of adaptive acid-tolerance response of the Rhizobia were adopted, six strains were isolated, which could grow on solid medium with pH4.8 steadily. In addition, the nodulation characteristics, growth curves and mean generation time under different acidity of the strains were examined.

为获得能够使紫花苜蓿在酸性土壤中高效结瘤的耐酸根瘤菌，该研究从酸性土（pH5.2）上生长的紫花苜蓿根瘤中分离到若干菌株，利用根瘤菌对酸的适应性耐受反应筛选到六株能够在pH4.8的固体培养基上稳定生长的菌株，并检测了这六株菌的结瘤特征、不同酸度下的生长曲线和平均代时。

Uses nonconductive materials, in wall clips or pads, to isolate the transmission of vibrations between objects.

使用非导电材料，在墙上的剪辑或垫，隔离振动的传播之间的物体。

The ratio between nonsynonymous and synonymous substitutions for CP gene is 0.092 which indicated the negative selective pressure for amino acid changes. No distinct correlation was found among isolate s in different years or different isolates in one year in a

灰飞虱的 RAPO聚类分析结果与病毒CP基因的系统发育分析结果具有一些相似性，初步暗示了 RSV与灰飞虱很可能是共同进化的。

In this method,fault detection is based on functional test for circuit boards, and fault isolation is based on the com- parison of actual response and expected response on correlative nodes,Besides, the aproach of building diag- nostic database and hardware composition of test system is introduced,According to this method,a practical test system has been made successfully.it can isolate 80% faults to nodes.

在该方法中，故障检测是基于对电路板的功能测试，故障隔离是基于相关节点的实际响应和预期响应的比较，此外还介绍了诊断数据库的建立方法以及测试系统的硬件组成。根据这一方法已研制成功一个实用测试系统，它能把80％故障隔离到节点。

Objective To isolate and purify HSP70-polypeptide compound from oesophageal carcinoma cells.

目的 分离纯化癌细胞中热休克蛋白70(HSP70)-多肽复合物。

The effective isolate 2507 producing antibiotic controlling oomycetes was first isolated from the soil samples.

本研究首先是进行有效菌株分离筛选工作，首次从世界各地采集的土样中分离筛选菌株，抗生素生产菌株2507可以防治植物卵菌病害。

Objective To isolate the rat intestinal epithelial organoid units by modified methods and to identify the viability of IOUs in vivo of nude mouse.

目的 采用改良方法分离大鼠小肠上皮类器官单位，鉴定IOUs裸鼠体内发育能力。

We used direct PCR to isolate the rps7Ⅵintron region hosting the f copy of U17 snoRNA coding sequence from 49 fishes, which include 42 ostariophysan species plus 7 outgroup species.

我们测定了49种鱼类、67条rpS7 intron6序列，得到U17 snoRNA f copy，共计55个单倍型，包括42种骨鳔鱼类，7种外类群。

DGGE result showed that As-I1-3 was dominant in arsenite enriched community, followed by isolate As-I1-5 (Halomonas meridiana,100%) and Mn-I1-6 (Marinobacter vinifirmus, 99%). 16S rDNA library analysis reconfirmed the result of DGGE, which showed that the three bacteria occupied 72.5%, 10% and 7.5% of the total OTUs, respectively.

DGGE分析显示，该菌是富集物中的最优势菌，其次是盐单胞菌和海杆菌。16S rDNA 克隆文库分析结果进一步证明，与菌株AS-I1-3序列相同的克隆子占整个克隆文库的72.5%；而与菌株AS-I1-5 (Halomonas meridiana， 100%)和菌株Mn-I1-6（Marinobacter vinifirmus，99%）序相同的克隆子分别占10%和7.5%。

This is a new method to isolate dermal papillae of mass human hair follicles efficiently and rapidly.

消化过滤法是一种能够大规模高效、快速分离培养人头皮毛乳头细胞的方法。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。