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A completely trusted third party is not necessary in our scheme. It makes the system model simpler and reinforces undeniability and anonymousness of cash-publishing bank, therefore strengthens security of whole system and anonymousness of E-Cash. The application of self-certified public key policy also can lighten the burden of verifying cash for corporation and depositing bank.

该方案不需要完全可信的第三方，系统模型更加简单；增强了发币银行的不可否认性和匿名性，从而增强了整个系统的安全性和电子现金的匿名性；同时，自证明公钥体制的应用也减轻了商家及其存款银行验证电子现金的负担。

SHRIMP zircon U-Pb ages of gabbro, anorthosite, and plagiogranite from the ophiolitic complex, and related marginal granite in the Jinshajiang area, provides important geochronological constraints for the oceanic spreding, the subduction and final collision, therefore, which constructs a time framework for the Jinshajiang Paleo-Tethys evolution.

应用SHRIMP方法测定了金沙江蛇绿岩中的各类辉长岩，斜长岩，斜长花岗岩，及沿金沙江带分布的陆缘型花岗岩的年龄，提供了洋壳形成，俯冲消减和碰撞造山事件等古特提斯演化的重要的同位素地质年代学制约，从而建立了金沙江古提斯演化的年代格架。

Therefore, he is not answerable to anyone.

因此，他无需对任何人负责。

Able to make moral or rational decisions on one's own and therefore answerable for one's behavior.

有责任感的，对自己负责的：能够全靠自己做出道德或理性的决定并因而能对其行为负责的

In the order of time, therefore, we have no knowledge antecedent to experience, and with experience all our knowledge begins.

因此，在时间的次序中，在经验之先，我们没有知识，而我们的一切知识都是从经验开始。

Therefore, it is important to select and design the right optical antenna.

因此，选择和设计适宜的天线系统有着重要的意义。

Therefore, the configuration of the antenna is that you have to consider an important issue.

所以天线的配置是你不得不考虑的一个重要问题。

Therefore, smart antenna has become one of the most attractive technologies in the field of mobile communication.

因此，智能天线技术已经成为移动通信中最具有吸引力的技术之一。

Therefore, this paper raises the antetype of individual online teaching system by introducing some individualized techniques and data-mining techniques in the traditional online teaching system.

本文针对这一问题，提出了在传统网络教学系统中引入个性化技术、数据挖掘技术，构建基於Web的个性化网络教学系统原型。

The change of the cup anteversion angle can not affect the load distribution in the acetabulum,therefore the cup abduction range of 40°-50°can be confirmed as the safe range for cup implantation.

臼杯外翻角在40°～50°的范围内，假体-骨界面间的应力分布均匀，不存在因臼杯位置的不同而出现的应力过大或过小区，是臼杯置入理想的安全范围。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。