Teaching points I. Background information II. Introduction to the passage III. Text analysis IV rhetorical devices V. Questions for discussion

Teaching points I. Background information II. Introduction to the passage III. Text analysis IV rhetorical devices V. Questions for discussion

Teaching points I. Background information II. Introduction to the passage III. Text analysis IV rhetorical devices V. Questions for discussion

63.1 Power System Analysis Introduction Types of Power System Analyses The Power Flow Problem. Formulation of the Bus Admittance Matrix.Example L.L. Grigsby and Formulation of the Power Flow Equations. P-V Buses.Bus

1.名词(substantivum)(简称 subst.或s.)表示人,地,事物的名称。变格。 2.形容词(adiectivum)(简称a)表示人和事物的特征。词尾的变化随名词走。变格 3.动词(verbum)(简称v)表示人或事物的动作或状态。变格。植物学中一般不用,故省略

characteristic is assumed to be as shown in Fig. 17-15b 1 Sketch the characteristic of each of the following circuits shown in Fig. 17-31. the diode characteristic is shown in Fig. 17-3le 2 Sketch the transfer characteristic of each of the following circuits shown in Fig. 17-32 the transfer characteristic being vo/v

14-1图中1、Ⅱ、Ⅲ、ⅣV轴是心轴、转轴、还是传动轴? 14-2已知一传动轴传递的功率为37kW,转速n=900r/min,如果轴上的扭切应力不许超过40MPpa,试求该轴的直径

在受弯构件的剪弯区段,在M、V作用下,有 可能发生斜截面破坏。 斜截面破坏 斜截面受剪破坏——通过抗剪计算来满足受剪 承载力要求; 斜截面受弯破坏——通过满足构造要求来保证 受弯承载力要求

15-16如图15-16所示,两相干波源分别在P、Q两点处,它们发出频 率为v、波长为,初相相同的两列相干波设PQ=312,R为PQ连线上的一 点求:(1)自P、Q发出的两列波在R处的相位差;(2)两波在R处涉时的合 振幅

一、内能功和热量 理想气体内能EMiRT内能是状态量,是状态参量T的单值函数。实际气体内能:所有分子热运动的动能和分子间势能的总和。内能是状态参量T、V的单值函数