求：数控车床宏程序编程详解？非常感谢！

T0101

G97S1000M03

G0X50.0Z3.0

G73U4.0W0.5R4

G73P10Q20U0.5W0.05F0.2

N10G0X34.641Z1.0

G1Z0.0

G3X36.81Z-17.826R20.0

G2X42.332Z-22.0R3.0

G1X44.0

X48.0Z-33.0343

G1Z-100.0

N20G1X50.0

G70P10Q20F0.05

G0X200.0Z300.0

T0100M05

N1G97S500M03

T0202

G0X50.0Z-35

X44.0Z-57.0

G75R0.2

G75X38.0Z-72.0P6000Q3000F0.04

G0Z-62.0

G0X39.0

G1X28.0F0.1

G1X39.0F0.2

G0X200.0

Z300.0

T0200M05

N2G97S1000M03

T0101

G0X50.0Z-60.0

G73U3.0W0.5R3

G73P30Q40U0.5W0.05F0.2

N30G0X44.0

#1=10.2

WHILE[#1GE-9.8]DO1

#1=#1-0.2

#2=[[-3]*ATAN[#1/2]]/90

G1X[2*[#2]+38]Z[#1-72]F0.05

END1

N40G0X50.0

G70P30Q40F0.02

G0X200.0

Z300.0M05

T0100

N3G97S1000M03

T0303

G0X60.0Z-60.0

X50

G73U3.0W0.5R3

G73P50Q60U0.5W0.05F0.2

N50G0X44.0