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On Wednesday the agency cut Greece's credit rating. It has also put Portugal's double-A rating under review .

本周三该机构砍低了希腊的信评等级；葡萄牙的双A评级亦入再审之列。

Everything is a function of leverage, how much of a drawdown are you willing to tolerate, how much leverage do you want to put on.

什么事都和杠杆有关系，你能承受多大的缩水，你就用多大的杠杆。

After a shower, he put on his overalls as a dustman.

冲完淋浴，他穿上了清洁工的工。。。

You only put quite a small amount of filling on the wrapper and then fold together the edges of the wrapper to form a half moon shape, and press the edger well together.

你只需放少量的馅在饺子皮里，然后把饺子皮的边缘折在一起成一个半圆型，最后把边缘压紧，这就好了。

You only put quit a small amount of filling on the wrapper and then fold together the edges of the wrapper to form a half moon shape,and press the edger well together.

你只需放少量的馅在饺子皮里，然后把饺子皮的边缘折在一起成一个半月形，最后把边缘压紧，这就好了。

This thesis through analyzing SNMP and discussing traditional network management model, put forward a kind of realization method that can examinate network node flux and a kind of three layer network management model that based on Web.

本论文在分析SNMP协议和讨论传统网络管理模型中不足的基础上，提出了一种检测网络节点流量的实现方法和一种基于Web的三层网络管理模型。

In order to improve the reliability of the nuclear Generating Sets and the stabilization of the power system, prevent the long time low frequency oscillation caused by the disturbed of the outside electrical net, assured improving the stabilization margin of the nuclear generating sets in the precondition of enough transient stability, validate the sensitivity of the parameter to the damping of Generating Sets of the MEC5220 digital excitation adjustor produce in Japan that used in the Second Project of Qinshan Nuclear Power Plant, confirm the parameter rationality of the digital excitation adjustor, optimize the parameter of PSS, in this paper, we put up a in-depth study to the principle of MEC5220 digital adjustor produce in Japan by the PSS/E software that develop by the PTI Company in the USA, completed the modeling of the excitation adjustor, PSS, generator, excitor, described the performance of this excitation adjustor, analyzed the essential reason that caused the low frequency oscillation, illuminated the factor that influence the damping characteristic of the MEC5220 digital excitation adjustor. Based on model and emulate, this paper optimized the primary parameter of the excitation adjustor, make a reasonable regulation to the PSS parameter.

为提高核电机组的运行可靠性和接入系统的安全稳定性，防止在外电网的干扰下核电机组发生长时间的低频振荡，保证机组在暂态稳定的前提下提高其稳定裕度，验证秦山核电二期核电机组所配日产MEC5220型数字式励磁调节器参数对机组阻尼的灵敏性，确定数字式励磁调节器的参数的合理性，优化PSS整定参数，本文利用美国PTI公司研发的PSS／E软件对日产MEC5220型数字调节器的原理进行进行了深入细化的研究，完成了励磁调节器、PSS、发电机、励磁机的建模，描述了该型励磁调节器的性能，分析了产生低频振荡的根本原因，阐明了影响阻尼特性的因素。

Dress up : put on special clothes, as for a play, a fancy dress ball, etc.

为演戏，参加化装舞会等着特殊服装

Both were derived from Mistress, a word that, before it put on its feather boa and fishnet stockings, was the title for any woman with authority over a household.

在该词前加上"羽毛围巾"、"网眼长袜"的定语则指在家里能做主的任何女性。

Still, although Ferraro was a first-class campaigner, it was not she but Walter Mondale who made the decision to put her on a national ticket.

而且，菲洛拉还是一个一流的竞选者，是沃尔特。蒙代尔给了他一张前往全国竞选的通行证。

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。