9.9. � � � � б � � Բ � � � � � ֵ IJ � � � � � � � � gamma ߴ � � � � � �

� � б � � � ֵ � � ֳ � Ϊ � � � � � Σ � � ڴ � ֱ � ڳ � � � � � � ߵ Ķ � � chuan � plus or minus � � � t � � ʾ � � � ʹ � ֱ � ڳ � � � � � � � � � ķ � � chuan � plus or minus � � � n � � ʾ � � � � � kind guide � ͬ � IJ � � � � � б � � � ֵ Ķ � � � � DZ � ׼ � Ľ � � � � ߣ � � � � � б � � � ֵ ļ ӹ � � � � � � � � Ƕ ȿ � � � б � � � ֵ ķ � � � � � � Ӧ Ϊ � � ׼ ֵ � � 1. � � � � � Ǧ �
� � � � ͼ � � ʾ Ϊ б � � � ַ ֶ � Բ � � � � չ � � ͼ � � � � � � � � չ � � � � һ ֱ � ߣ � � � ֱ � � � � � � � ߵ ļ н Ǧ after � Ϊ б � � � � � ڷ ֶ � Բ � � � ϵ � � � � � � ǣ � � � �б � � � ֵ � � � � � � �� � = tan � � � � d/ps � � � ڻ � Բ � � ͬ � � ɵ � � � � � � � � Ǧ � Ϊ b: � � � � � У � ...� �9-9-01�� ͨ � � � present ֶ � Բ � ϵ � � � � � � Ǧ � б � � � м � � gamma ߴ � ļ � � 㡣 � � � � � Ǧ � Խ � � � ֳ ݾ � Խ � � б � � � � � � � � ƽ � � � � Ҳ Խ � a � � � � � � � � � Ҳ Խ � � ͨ � � � � � � � ʱ ȡ � � � � � � � � � ӳ � � ֣ � � � � � � � � � � � � Ե � � � � � � � ȡ � � � � � ӹ � � � Ϊ � � � ѣ � һ � � � � � � � � � ͻ � е � awesome � � ִ � � � � С � � � � ְ � � � � � � � � � � � � � � � � � � � � ɷ � Ϊ � � � � � � � � � � � � � ֡ � � � � � ж � � � � � � � � أ � � � � � һ � £�
2. ģ � � � � ͼ � � ʾ� � pt Ϊ � � � � ݾ ࣬ � � pn Ϊ � � � � ݾ ࣬ pn = pt � � cos � £� � � Ϊ p = � � m, � � mn � � � � mt � � cos � � and � � б � � � ַ � � � ģ � � � � � � � ģ � � � Ĺ � ϵ Ϊ: mn � � mt � � cos � ¡ �
3. ѹ � � � � � � б � � Բ � � � � � ֺ � б � � � � � � � � ʱ � � � � � ǵ ķ � � � ѹ � � � Ǻ Ͷ � � � ѹ � � � � Ӧ � ֱ � � � ȣ � � � � � б � � Բ � � � � � ַ � � � ѹ � � � Ǧ � � n Ͷ � � � ѹ � � � Ǧ � � t Ĺ � ϵ � � ͨ � � б � � � � � o � � � � � � � ͼ � � ʾ � � б � � � � � У � ƽ � � ABD � ڶ � � � � ϣ � ƽ � � ACE � ڷ � � � S � ϣ � � � ACB = 90 � 㡣 � � ֱ � ǡ � ABD � � � � ACEJ � � � � � ABC У �� �� �� � BD = CE � � � � � � � У � ...� � 9-9-03 � �	> > � � � � ѹ � � � Ǻ Ͷ � � � ѹ � � � ǵ Ĺ � ϵ < <
4. � ݶ � � � ϵ � � � � � � ϶ ϵ � �� � � � � ۴ ӷ � � � � Ӷ � � � � � � � � � � ֳ ݵ awesome ݶ � � ߶ � � � � � ͬ � ģ � � � ϶ Ҳ � � � � ͬ � ģ � � �
5. б � � � ֵ ļ � � gamma ߴ � � � �� � ֻ Ҫ � � ֱ � � Բ � � � � � ֵ ļ � � gamma ߴ � � � 㹫 ʽ � е ĸ � � � � � � � � � � � � � � � � � � � � � � ȫ � � � � � � ƽ � � � � � ׼ б � � � ֵ ļ � � gamma ߴ � � � 㣬 � � � � � � 㹫 ʽ � � � plus or minus � � � ʾ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ʽ � � � ֶ � Բ ֱ � � d � � d = mz= (mnZ/cos � �) � � � � Բ ֱ � � db � � db= dcos� � t � � � ݶ � � � H.a. � � ha.= h *The anmn � � � ݸ � � � H.f � � hf= (h *The an+ c *n) mn � � ȫ � ݸ � H. � � h = ha + hf(2 h *The an+ c *n) mn � � � ݶ � Բ ֱ � � da. � � da.= d + 2 ha � � � � � ľ � a. � � a = (d1+ d2) / 2 =mn(z1 +z2) / 2 cos � � � ӱ � � п � � Կ � � � � � б � � � ִ � � � � � � � � ľ � � � � � � � � Ǧ � � й ء � � � һ � � б � � � ֵ � ģ � � � � � � � � һ � � ʱ � � � � � � ͨ � � � ı � � � � � � Ǧ including ķ � � � � � � � � � � � � ľ ࡣ