875 A (Open on the 7 Th)(875 A（7号开）) 876 B (Open on the 7 Th)(876 B（7号开）) 877 C (Open on the 7 Th)(877 C（7号开）) 878 D (Open on the 7 Th)(878 D（7号开）) 879 E (Open on the 7 Th)(879 E（7号开）) 880 F (Open on the 7 Th)(880 F（7号开）) 881G (Open on the 7 Th)(881 G（7号开）) 882 H (Open on the 7 Th)(882 H（7号开）) 883 I (Open on the 7 Th)(883 I（7号开）) 884 J (Opened on the 7 Th)(884 J（7号开）) 885 K (Opened on the 7 Th)(885 K（7号开）) 886 L (Open on the 7 Th)(886 L（7号开）) 887 M (Open on the 7 Th)(887 M（7号开）) 888 N (Open on the 7 Th)(888 N（7号开）) 889 O (Open on the 7 Th)(889 O（7号开）) 890 P (Open on the 7 Th)(890 P（7号开）) 891 Q (Open on the 7 Th)(891 Q（7号开）) 892 R (Open on the 7 Th)(892 R（7号开）) 893 S (Open on the 7 Th)(893 S（7号开）) 894 T (Open on the 7 Th)(894 T（7号开）) 895 U (Open on the 7 Th)(895 U（7号开）) 896V (Open on the 7 Th)(896 V（7号开）) 897W (Open on the 7 Th)(897 W（7号开）) 898 X (Open on the 7 Th)(898 X（7号开）) 899 Y (Open on the 7 Th)(899 Y（7号开）) 900 Z (Open on the 7 Th)(900 Z（7号开）)

Adjustable Opening(开口可调节)