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Based on description method of damping motion in mechanical vibration, variables movement of generator are divided into two basic motion models: damping oscillation and critical damping motion. Detail methods of extracting damping parameters from simulation data is introduced to establish variable motion models. An approximate method is put forward to simulate low-frequency signal and generator response characteristic, from which motion models and damping parameters of main variables are obtained. The influences of oscillation amplitude, frequency and initial operating point of power system to the motion damping parameters are analyzed.

借鉴机械振动中阻尼运动的描述方法，将低频振荡下发电机主要变量的运动归纳为阻尼振荡和临界阻尼两种基本运动形态；介绍了从仿真数据提取阻尼参数建立参数运动模型的方法，实现对发电机振荡特性的量化分析；提出一种系统侧低频振荡信号的近似模拟方法，并应用于发电机响应仿真，获得了主要变量的运动模型和阻尼参数；分析了系统侧振荡幅度、频率以及初始工况对发电机功角振荡的影响。

The Bosnian Serb massacre of thousands of men from Srebrenica marked a turning point. The Dayton Accords, signed in late 1995, divided Bosnia into two entities: the Bosniak/Croat Federation and the Republika Srpska.

波斯尼亚塞族对斯雷布雷尼察成千上万波斯尼亚男子的屠杀是战争的转折点。1995年末签署的《岱顿协定》将波斯尼亚划分成两个实体：波族-克族的波黑联邦和塞族共和国。

Cross section of the beam was divided into layers, in which each layer might have different materials, but its properties were assumed to be constant over the layer thickness.

梁的横截面被把分成在其中每一层可以有和不同材料的层但是它的小道具被假定在层厚度的上方是不断。

Skiing can be divided into cross-country and down hill.

滑雪运动可以分为越野和下坡的方式。

Decoration is divided into the decoration of crossbeam, ceiling, kitchen, toilet according to different decoration object.

针对这一情况，本研究通过大量的调查并结合具体装修实例对装修过程中普遍存在的不规范行为进行分析。

45 Duroc-Landrace-Yorkshire crossbred weaning piglets with average weight of about 10 kg were divided into three groups.

选用45头体重为10 kg左右的杜长大三元杂交断奶仔猪，将它们分为3组，比较3组生长肥育猪的生产性能。

45 Duroe-Landraee-Yorkshire crossbred weaning piglets with average weight of about 10 kg were divided into three groups.

文章摘要：选用45头体重为10kg左右的杜长大三元杂交断奶仔猪，将它们分为3组，比较3组生长肥育猪的生产性能。

20 Crossbred beef cattle were divided into 2 groups in order to study the effects of Chinese herb medicine additive on their performance and blood biochemical parameters.

摘要选用20头杂交架子牛，随机分2组，研究日粮中添加中药饲料添加剂对肉牛生产性能和血液指标的影响。

The crossbred pigs with body weight of about 35 kg were divided randomly into three experimental groups,were fed by three nutrition levels of diets respectively.

日粮中的消化能、蛋白质和赖氨酸水平是影响生长育肥猪生产性能及胴体肉品质的重要因素，也是决定饲养成本的关键。

Crossbred pigs of 30kg were divided randomly into one control group and three experiment groups.

甜菜碱是一种季胺型生物碱，又名甘氨酸甜菜碱、三甲基甘氨酸。

In cold winter, We are likely to catch a cold.

在寒冷的冬天我们有可能感冒

The results of this study may be useful for guiding the conservation of germplasm of Stipa grandis.

研究结果对大针茅种质资源的保护具有重要的指导意义。