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Biology technique is based on appearance symptom on sweet potato or Ipomoea Setosa after they are infected to identify virus. But it need long period and is apt to be limited by season. Based on coat protein of virus, serology detects virus during peculiar immunology reaction of antibody and antigen. But it can't detect virus without CP and preparing antibody need more time. The molecular biology method is based on nucleic acid to detect virus. This technique has high sensitivity, strong veracity, wide suitability etc.

生物学方法是依据病毒侵染后在甘薯或指示植物上的外观症状进行识别，但检测速度慢，易受季节限制；血清学技术是利用病毒外壳蛋白的抗原性，据特异性的抗体抗原免疫学反应检测病毒存在，但制备抗血清需时间长，对含量少和无蛋白外壳的病毒无法检测；分子生物学方法是以核酸为基础，通过检测病毒核酸来证实病毒的存在，该技术具有灵敏度高、特异性强、适应范围广等特点。

However, the research in this field is just started in China. Not only many technique problems need to be studied, but also a lot of social, economic and juristic problems need to be solved.

我国有关该领域的研究才刚刚起步，不仅有许多技术问题需要研究，而且有许多社会的、经济的、法律的问题需要解决。

I need you just as you need me, and I love you like I love you.

我需要你正如同你需要我，我爱你也像你爱着我。

"Often we can't move on because we haven't yet learned what we're supposed to from a difficult situation," Kase says. After contemplating whether I'd actually gained some insight from my suffering, I realized I now have a clearer sense of what I need and don't need from my inner circle.

Kase说："往往我们不能继续前进的理由是我们还没有学到在某个困难境地中应该学会的东西"当在我对自己的痛苦考虑是否从中获得了一些知识之后，我发现，现在对于内部圈子中我所需要的和不需要的有了更清晰的看法。

I need him ke I need the air to breathe.

我需要他，正如我需要呼吸空气。

That's the promise we need to keep. That's the change we need right now.

这是我们应该保持的承诺，这是我们现在所要的改变。

Kingston's whole thing is,'I need, I need.

金士顿的整个事情是，'我需要，我需要。

White church leader, Bayers Nordea, told the crowd,'The accident at Kinross need never have occurred, and the one hundred and seventy-seven men need not have died.

白人教堂领导， Bayers Nordea 告诉人群，' Kinross 金矿的事故永远都没有必要发生，那177位矿工也没有必要死亡。

As land development business investors and land users, who urgently need to understand and grasp the market price of urban 1and and 1and distribution, l and assets to determine their volume and 1and development investment; As land owners and managers to develop land price policy, regulatory and macro-management of land, Cities also need to grasp the dynamics of land distribution and premium changes for scientific decision-making.

作为土地开发经营的投资者和土地使用者，他们迫切需要了解和掌握城市土地的市场价格和地价分布，以利于其确定土地资产量和进行土地开发投资；作为土地所有者和管理者，要制定地价政策，进行地价调控和宏观管理，也需要把握城市地价的分布和地价的动态变化，以便进行科学决策。

Establish mechanism of oil of chicken establishing treasure finite liability company, it is medium oily group company, medium the main component of deploy of strategy of whole of head office of outfit of fat other people, also be the solicitous that lapidary faculty comes to for years, it is to get used to the need of domestic and international new condition more, it is an enterprise the need of long-term development.

组建成立宝鸡石油机械有限责任公司，是中油集团公司、中油物装总公司整体战略部署的重要组成部分，也是宝石全体员工多年来的热切期望，更是为了适应国内外新形势的需要，是企业长远发展的需要。

No, it's unnecessary. I don't think I have a fever.

不，没有必要，我想我没有发烧。

We live in a culture of instant gratification.

我们生活在即时满足的文化中。