A watermelon mosaic virus 2 (WMV-2) isolate from diseased watermelon in Shanxi Province was used for cDNA synthesis of WMV-2 CP gene by RT-PCR.

本研究以从山西西瓜上分离纯化得到的西瓜花叶病毒2号（WMV-2）分离物为材料，用RT-PCR方法得到其外壳蛋白（CP）。

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These procedures assume they can isolate from the rest of the world a closed system containing only a limited number of variables and a limited range of consequences.

这些程序假定人们能够处于一个与世隔绝的封闭系统之中，这个系统只包含有限数量的变量和有限范围的结果。

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Genotyping of the PCR-amplified isolate from the confirmed case shows high homogeneity with other H5N1 isolates from poultry in Java, and no evidence of reassortment.

对确认病例的PCR扩增分离菌进行基因型确定，显示与爪哇禽类的其它H5N 1分离菌具有很高的一致性，没有重新分类的依据。

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But his administration is also re-examining current American policy which aims to isolate Iran from the world.

VOA: special.2009.03.07

Obama administration officials said they don't want to get involved in verbal sparring with North Korea but they did call its latest threats provocative and say Pyongyang stands only to further isolate itself from the world community if it follows through with them.

VOA: standard.2009.04.14

The agreement comes amid growing tension between the U.S. and Iran, which the U.S. has sought to isolate from the world community.

FORBES: Magazine Article

The agreement comes amid growing tension between the United States and Iran, which the U.S. has sought to isolate from the world community.

FORBES

To put this into perspective, there are less than 100 antibiotics that have ever been described, and a single isolate from a cave produced almost a third as many.

BBC: Cave bacteria could help develop future antibiotics