采自

Using universal primers (R16mF2/Rl and R16F2/R2) for 16S rRNA and primers (rpF1/rpR1) for ribosomal protein gene to detect phytoplasmas associated with of chinaberry tree witches'-broom from Yunnan and Guizhou Province by polymerase chain reaction.

根据植原体16S rRNA基因通用引物序列(R16mF2/R16mRl、R16F2/R16R2)及核糖体蛋白基因通用引物序列(rpF1/rpR1)，应用PCR技术对采自不同省份的苦楝丛枝病植原体进行检测，结果从两个植物上分别获得苦楝丛枝病植原体云南株系和贵州株系。

The other, taken from a chinook salmon, is a version of the growth-hormone gene itself.

另一片采自奇努克鲑鱼，它本身就是一种生长激素基因。

The result showed that the mutagenecity of water increased in all samples treated with chlorine, while mutagenic potential was negative in source water samples not treated with chorine.

水样采自某单位自备水源。试验结果表明，未氯化自来水有机提取物致突变反应阴性，加氯自来水样诱发沙门氏菌致突变率升高；在一定范围内，随氯浓度增加，不会显著增加水样的致突变性。

Magna populations in edge and central region was studied. In 39 A. magna samples and five A. chukar outgroups, the entire mtDNA D loop was PCR amplified. The 456-457 nucleotides of the DNA D loop domain Ⅰ have been sequenced by dideoxy chain termination method. The 16 variable sites(3 5% of the entire sequence) defined 15 haplotypes.

本研究采用聚合酶链式反应和直接测序的方法获得了采自甘肃的大石鸡一个边缘种群和两个中心地理种群共39个个体的线粒体DNA控制区基因456～457个核苷酸的基因序列，16个变异位点(占整个序列的3.5%)有15个单倍型。

A new compound has been isolated from the Laurencia majuscule Lucas, it"s structure was determined by IR, MS,"HNMR, 13CNMR, clemently analysis.The compound is P -d-Arabinoside, 1-O-hexadecyl.

从采自西沙群岛的略大凹顶藻乙醇提取液的乙酸乙酯部分分离出了一个化合物，经IR、MS、~1HNMR、~(13)CNMR、元素分析等方法鉴定为一个新化合物：β-十六烷基-D-阿拉伯糖甙。

The results showed that ethanol extracts 0.01 g·mL~(-1 from 8 species of plants inhibited (more than 60%) conidium germination of one of the 4 kinds of fungi at least, but only a few plant ethanol extracts strongly inhibited mycelium growth.

以链格孢菌、芭蕉炭疽菌、尖孢镰刀菌、灰葡萄孢菌等4种植物病原真菌为供试菌，对采自福建省福州地区16种植物乙醇提取物的抑菌活性进行测试，结果表明，0。

The total nitrogen concentrations in thirty soil samples collected from thirty regions in China and digested by concentrated H2SO4 with catalyzer were analyzed by a continuous flow injection analyzer and traditional Kjeldahl method.

采自全国30个地区的30个土壤样品经H2SO4-催化剂消解后，分别用流动注射法和凯氏定氮法测定全氮含量。

Eastern Himalaya Syntaxis is an important area in studying climatic-tectonic reciprocity. In this paper, single-crystal-high-precision laser ~(40)Ar/~(39)Ar method was used to build the thermal evolutional history of Eastern Himalaya Syntaxis by tests on river sediments on the lower reach of Yalung-Tsangpo River. The contrast of age statistical results against the figure showing the changes in rate and angle of convergence during India plate has been colliding against Eurasian plate since late Mesozoic and the diagram consisting of global deep-seaδ18O andδ13C records is done, for the purpose of revealing climatic and tectonic information on rock cooling and referring the relationship between thermal evolutional history and climate and tectonics.

东喜马拉雅构造结是气候与构造相互作用的典型地区，本文尝试使用单颗粒高精度单次全熔~(40)Ar/~(39)Ar法对采自雅鲁藏布江大峡谷下游墨脱县城以南约50 km处地东河段的细粒现代河沙进行年代学测试，建立东喜马拉雅构造结的热史演化序列，并通过与代表全球气候变化的18O、13C浓度变化曲线和印度大陆向北运动的速度、角度变化曲线的对比，揭示气候、构造因素与东喜马拉雅构造结热史演化的耦合，推定热史演化与气候、构造过程的关系。

The contrast of age statistical results against the figure showing the changes in rate and angle of convergence during India plate has been colliding against Eurasian plate since late Mesozoic and the diagram consisting of global deep-seaδ18O andδ13C records is done, for the purpose of revealing climatic and tectonic information on rock cooling and referring the relationship between thermal evolutional history and climate and tectonics.

东喜马拉雅构造结是气候与构造相互作用的典型地区，本文尝试使用单颗粒高精度单次全熔40Ar/39Ar法对采自雅鲁藏布江大峡谷下游墨脱县城以南约50 km处地东河段的细粒现代河沙进行年代学测试，建立东喜马拉雅构造结的热史演化序列，并通过与代表全球气候变化的18O、13C浓度变化曲线和印度大陆向北运动的速度、角度变化曲线的对比，揭示气候、构造因素与东喜马拉雅构造结热史演化的耦合，推定热史演化与气候、构造过程的关系。

Methods Two methods,ADAPCO's RAMP System and MAS's VecTest kits were selected. The sensitivity and accuracy of these two methods and its cross-reaction with Japanese Encephalitis virus were tested. These two methods also were used to detect WNV in wild mosquitoes.

选择两种快速检测方法VecTest试剂盒和Ramp系统，对其检测WNV的敏感性、精确性以及与流行性乙型脑炎病毒的交叉反应进行研究，同时对采自北京市野外的蚊虫进行WNV检测。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。