The orbits of an electron in self-fields, linear wiggler and axial fields are calculated. Then the spontaneous emission coefficient and the growth rate of the stimulated scattering are obtained.

本文计算了在平衡自场、线性摆动器场和轴向磁场作用下的电子轨道，并由此求得有线性摆动器的自由电子激光器的自发辐射和受激辐射。

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You would recognize a self signed certificate by the fact that subject and issuer fields contain the same string while there is no certificate attribute set indicating this is a ca certificate.

自签署证书的特征是，主题和颁发者字段包含相同的字符串，而且没有设置表示这是ca证书的证书属性。

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RDF can be applied in fields that deal with ad-hoc incoming data, such as CRM, and is already being widely used in social networking and self-publishing software like LiveJournal and TypePad.

RDF可以应用于处理特殊输入数据(如crm)的领域，已经广泛用于社会网络和自助出版软件(如LiveJournal和TypePad)。

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HMOs will occasionally direct patients to self-anointed dermatologists who actually trained in other fields.

FORBES: Smart Patient Tip: Patronize Only Board-Certified Dermatologists

Saudi Arabia made itself self-sufficient in wheat by lavishing untold quantities of money to create grain fields in the desert.

ECONOMIST: Buying farmland abroad

In this context, she recalled that Iraq made voluntary contributions to UNESCO amounting to over USD 4 million in the first six months of 2012 alone, notably through self-benefiting projects in the field of cultural heritage preservation, and emphasized that such cooperation would be expanded to the fields of education and sciences.

UNESCO: MEDIA SERVICES