rhombohedral system

The synchysite with rhombohedral system has been discovered within the calcium-cerium fluorocarbonate of the rare-earth deposit of Chishan area in Shandong Province by using transmission electron microscope.

运用透射电镜方法，在山东郗山稀土矿床的钙－铈氟碳酸盐系列矿物中发现了三方晶系直氟碳钙铈矿（ｓｙｎｃｈｙｓｉｔｅ）的存在，其晶胞参数为ａ＝０。

The authors propose a provably forward-secure three-party password-based authenticated key exchange protocol in which two communication entities can authenti.

针对这种情形,文中提出了一个可证前向安全的基于口令认证的三方密钥交换协议,使通信双方在认证服务器的帮助下能相互进行认证并建立一个会话密钥。

The market failure of systematic innovation under the network externality condition and the intervention of the third party;

网络外部性条件下系统创新的市场失灵和第三方的介入

Modern market economic system leads to the for ma tion of “two persons' world” and ignore the third party.

现代市场经济促成了“两个人世界”的形成 ,被忽略的第三方是导致资源环境问题与不公平的主要原因。

By learning suitable experience from the foreign countries,to propose introduction of the third party mechanism in the community health service,in order to promote sustainable development of community health servic

从目前社区卫生服务中公共卫生服务发展缓慢、监督管理体制不健全等问题入手,通过借鉴国外适宜经验,提出在社区卫生服务中引入第三方机制的设想,以此推动社区卫生服务的可持续发展。