� � � � ʮ � Ľ �� � һ � � ѧ ʱ � � 2 ѧ ʱ � � � ⣺12.5 � � � � � � ֱ � � Բ � � � � � ִ � � � � � � � � 12.5.1 ʧ Ч � � ʽ 12.5.2 � � � ֲ � � � ѡ � � Ŀ � � � � � � � ˽ �� � � ֳ � � � � � ʧ Ч � � ʽ � � � � � � ԭ � � � Լ � � � � ֵ awesome � � o � � ϼ � � ȴ � � � � � � � � � � � � � ص � :� � � � � � ѵ 㣺 � � ʴ � � � � � � ԭ � � � � ѧ � � � � � � � � y � � չ ʾ ʧ Ч ʵ � � ͼ Ƭ 12.5 � � � � � � ֱ � � Բ � � � � � ִ � � � � � � � � 12.5.1 ʧ Ч � � ʽ
12.5.2 � � � ֲ � � � ѡ � � 1. � � � ֲ � � ϵ Ļ � � � Ҫ � �
���ֳݵ�ʧЧ������֪���Գ��ֲ��ϵĻ���Ҫ��Ϊ��(1)����Ӧ���㹻��Ӳ�ȣ��Եֿ�����ĥ��ʴ�������Լ����Ա��εȣ�(2)��оӦ���㹻��ǿ�ȺͽϺõ����ԣ��Եֿ��ݸ��۶Ϻͳ���غɣ�(3)Ӧ�����õļӹ��������ܼ��ȴ������ܣ�ʹ֮���ڼӹ��ұ����������ѧ���ܡ���õij��ֲ����Ǹ֣������������һЩ�ǽ������ϵȡ� 
2. � � � ֳ � � o � � ϼ � � � � ȴ � � �
1 � � � �
� � � � � � � ǿ � ȸ ߡ � � � � Ժ a � � � � � � � � 졢 � � � � � ȴ � � � � � ŵ 㣬 � � � � � � � � ֶ � � o � � � � 졣 � � � � � � � ֺ � Ӳ � � � � � � ֳ � � o IJ � � ϡ �
(1) � � � � � � � �
� � � � � � � ֵ awesome � � � Ӳ � � < 350 HBS � � � � � � � � ̼ � ֺ � � � ̼ � Ͻ � ֣ � � � � 45 ֣ 40 cr � � � 35 simn � Ȳ � � ϣ � � � � е � � ʻ � � � � � � � � � � ֳ � � � � � � � � � ǿ � ȡ � � � � � Ҫ � � � � the awesome � � ϣ � � � � � � � � � � ȴ � � � � � � kind guide � ݻ � � � ݼ ӹ � � � � � � � � � � � � � � ɱ � � ϵ ͡ �
� � ȷ � � � � С � � � � Ӳ � � ʱ Ӧ ע � � ʹ С � � � ֵ awesome � � � Ӳ � ȱ ȴ � � � ֵ awesome � � � Ӳ � ȸ 30 һ 50 HBS � � � � � � � � � Ϊ С � � � � � � � غ ɴ eta � ȴ � � � ֶ ࣬ � � С � � � ֳ ݸ � � ϱ � � � Ϊ ʹ � � � � � ֵ � � ֳ ݽ ӽ � � � ǿ � ȣ � С � � � ֵ awesome � � � Ҫ � ȴ � � � ֵ awesome � � � Ӳ һ Щ � �
(2) Ӳ � � � � � � �
Ӳ � � � � � � ֵ awesome � � � Ӳ � ȴ � � � 350 HBS � � � � � o IJ � � � Ϊ � � ̼ � ֻ � � � ̼ � Ͻ � ־ � � � � � � � � �
2 � � � � � �
� � � � � ֵ awesome ߴ � ϴ � (� � � � 400 һ 600 mm) � � � � � � � ڶ � � � ʱ � � � � � � � � � 췽 � � � Ƴ � � � � ֳ � � � � � � ٽ � � � � � � � � � � � ϸ � � � � � � � �
3 � � � � � �
� � � ١ � � � � س � � ϵ awesome � � ֿ � � � � Ƴ � � � � � � � � � � � � � � ߴ � � � � 500 MMM ʱ � � � � � ̴ � � Ȧ � � � � � Ƴ � � ַ � ʽ � � � ֡ � 3. � � � � � � � � ڱ � ʽ � � � ִ � � � � �
1 � � � � � � chuan � � 350 HBS � � � � � � � � Ҫ ʧ Ч � � ʽ � dz � � � � ʴ � � � ʿ ɰ � � � � � Ӵ � ƣ � � ǿ � Ƚ � � � � � Ƽ � � 㣬 � � � ݸ � � � � � ƣ � � ǿ � � У � ˡ �
2 � � Ӳ � � � chuan > 350 HBS � � � � � � � � � � � ֣ � � � � ڿ � � � ʴ � � � � � ϸ ߣ � � ֳ � � ۶ ϵ Ŀ � � � � Խ ϴ ʿ ɰ � � ݸ � � � � � ƣ � � ǿ � Ƚ � � � � � Ƽ � � 㣬 � � � � � � Ӵ � ƣ � � ǿ � � У � ˡ �
� � � ڿ � ʽ � � � ִ � � � � е awesome � � ֣ � � � � � ĥ � � Ϊ � � � � Ҫ ʧ Ч � � ʽ � � � � ͨ � � � � � ճ ݸ � � � � � ƣ � � ǿ � Ƚ � � � � � Ƽ � � 㣬 ȷ � � � � � ֵ � ģ � � � � � � � � ĥ � � � � � أ � � ٽ � ģ � � � � � � 10% � � � � 20% � � � � � � � � У � ˽ Ӵ � ǿ � ȡ � |
