必需

With the widespread application and rapid development of the computer science and Internet technology, the expert estimates that the requirement of storage capability would be increased by the rate of 50%--100% every year;to lots of corporations, as a result of their work request, the data must be in online state everywhen. So, at the time of available data are extremely increased, how to protect the security, integrity and coherence of the data effectively and how to enhance the high availability in storage management software has become an important target.

跟着盘算机和互联网络技术的普及应用和飞速发铺，业界的剖析家估量，对存储容量的需求以后会以每年50%—100%的速度递增；对众多企业而言，因为其工作性质的请求，致使数据必需在每天24小时、每周7天、每年365天处于可使用状况，所以如何在数据呈现爆炸式增加的同时，更有效的维护数据的安全、完全和一致，更有效的提高管理体系的高可用性已成为各种存储管理软件追求的主要目的。

B is the important element of tobacco,having an important on the growth and quality,if B is undersupply or excess , the tobacco physiological function destroied.

硼是烟草生长的必需元素，对于烟草的生长和品质有很重要的影响，硼素供应不足或是过剩都会引起烟草生理机能失调，品质下降。

Force needed to add to the executer unit to make the switch conact back to normal position.

使开关触点回复到正常位置，所必需减少施加于操动器上的力。

Software has characteristics of knowledge assets, such as publicity, exclusivity and exhaustibility; but it is more complex to define the software property rights.

通过知识产权保护制度对软件产权进行保护，是矫正软件公共性，维护软件市场的必需手段。

These results have profoundly changed astronomers' views of BHs: More than just exotica needed to explain rare AGNs, BHs are becoming an integral part of our understanding of galaxy formation.

这些结果深深地改变了天文学家对黑洞的认识：比解释活动星系核更吸引人的是，黑洞正成为解释星系形成必需的一部分。

In particular, reinterpretation of the growth rate in terms of some form of expected value is required.

特别是，重新解释的成长在一些形式上的预期值率是必需的。

We expel what to our bodies are toxins and take in what we need to live.

我们排出对身体有害的东西吸入生存所必需的东西。

Now we have known that SARS-CoV encoded 11 varietal proteins. They have 4 constitutive proteins: spike protein, membrane protein, envelope protein and nucleocapsid protein. Spike protein trimer form spike and exsertion? virus peplos on the surface. Spike protein is archi-surface antigen component of virus, it has acceptor binding and membrane fusion activity. Spike protein has important effect at tissue tropism, cell-fusion and toxicity. Nucleocapsid protein can bind genome RNA to shape neucleocapsid. Membrane protein and envelope protein are necessary constituent to shape virus peplos. Spike protein is I-type membrane glycoprotein, it mediate virus binding with host cell epimembranal acceptor and to fuse host cell membrane.

SARS-CoV属于巢状病毒目、冠状病毒科，为单正链RNA病毒，基因组全长约29.7kb，已知编码11种蛋白，其中包括4种结构蛋白，分别是刺突蛋白、包膜蛋白、小包膜蛋白和核蛋白或核壳体蛋白。S蛋白三聚体形成突起，伸出包膜表面。S蛋白是病毒的主要表面抗原成分，具有受体结合和膜融合活性，在组织嗜性、细胞融合和毒力等方面起重要作用。N蛋白与基因组RNA结合形成核衣壳。M蛋白和E蛋白是包膜形成所必需的成分。

The Site Attenuation of an ideal OATS is the standard [FCC OST-55, 1977] to be followed by any practical OATS or test chamber. An ideal OATS is the half space above a perfect conducting ground plane that extended to infinity.

用来测试电子资讯类产品之电磁辐射强度，以作为判定是否符合法规限定之安全辐射强度上限，因此理想开放测试场地就是实际测试场地必需在容许误差内达成的标准。

The Site Attenuation of an ideal OATS is the standard [FCC OST-55, 1977][ANCI C63.4, 1991] to be followed by any practical OATS or test chamber. An ideal OATS is the half space above a perfect conducting ground plane that extended to infinity.

用来测试电子资讯类产品之电磁辐射强度，以作为判定是否符合法规限定之安全辐射强度上限，因此理想开放测试场地就是实际测试场地必需在容许误差内达成的标准。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。