ָ:   Paper
           
:  ͼ 
λ:    1.  ʽܱ      Yע  ->  ͼ              
         2.                    Y_ע ->  ͼ 

 -- 趨 ͼ, ʵ,,,,ɫ

Ͽ -- ༭ע

˾ -->ԶϿ,

˾Ӣ -->ԶϿ,

 ----->ԶϿ,.

ͼֽ ------ ڶͼֽ A1     

 ---> ---  ͼֽ. 
    :  A1ͼ(PLOT),С(0.8)ͼʱ. 趨Ϊ 1 : 0.8  or  1.25 : 1 

 -->ˮ --- ڶ 5 / 1000 
 -->                                
 --> --- ڶ 
 -->ģ --- ڶͼ
 -->Ŵ ---  ڶֵ <1> ,һͼֽ Զ 1     
