表达式31: "l" Subscript, "b" "i" "g" , Baseline left parenthesis, left bracket, 0 , StartFraction, 360 Over "n" , EndFraction ...3 6 0 , right bracket , "x" , right parenthesislbig0,360n...360,x
31
表达式32: "l" Subscript, "s" "m" "a" "l" "l" , Baseline left parenthesis, left bracket, 0 , StartFraction, 360 Over "n" , EndFraction ...3 6 0 , right bracket , "x" , right parenthesislsmall0,360n...360,x
