How to draw a cross section? Lesson 12
A drawing ( 圖形 ) which shows a cut through of an object ( 物體 ). It tells us the relief ( 地勢 ) of a place. What is a ‘cross section’ ( 橫切面 ) ? Relief   describes the shape ( 形狀 ) and height ( 高度 ) of the land.
 
Step 1
Step 2 A B
Step 3
Step 4
Step 5
Step 6
1 2 3 5 6 4
 
Reminder Presentation  Cycle 21 18/5/2011 (Day 4)

Lesson 12 - How to draw a cross section?