型号 Type	A	B	C	R
BSG2	7.94	19.05	1.4	50.98
BSG3	9.53	19.05	1.42	38.23
BSG5	12.7	25.4	1.85	64.9
BSG51	6.35	12.7	1.07	26.67
BSG6	15.88	25.4	1.85	47.75
BSG7	19.05	25.4	1.91	41.43