4.1.1电磁波测距仪使用的载波 光与微波波包括机械波和电磁波

Part 1 Objectives Part 2 Background Part 3 Text Organization Part 4 Language Study Part 5 Translation

Unit 1 Ways of Learning Unit 2 Values Unit 3 The Generation Gap Unit 4 The Virtual World Unit 5 Overcoming Obstacles

Unit 1 Writing For Myself Unit 2 Friendship Unit 3 Understanding Science Unit 4 American Dream Unit 5 Romance

2.5.1测角网。细实线,纵向大,说明角度主要控制横向

1.2.1铅垂线与大地水准面引力

分析市场结构以及完全竞争性厂商如何选择产量以使它的利润最大

Part 1 Objectives Part 2 Background Part 3 Text Organization Part 4 Structure Study Part 5 Language Points Part Translation

Part 1 ObjectivesPart Part 2 Background Part 3 Ddiscussion Part 4 Language Points Part Ccontent Questions Part 6 Translation

Part 1 Objectives Part 2 Discussion Part 3 Background Part 4 Structure Study Part 5 Language points Part 6 Content Questions