靶心距
distance to target center
target center distance
off-target distance
仪器偏心距
eccentricity of instrument
正多边形的边心距
apothem of a regular polygon
中心距
CD
hub distance
Center to Center Spacing
distance between center lines
centre distance
center-to-center
center to center distance
center distance
distance of center of axis
central distance
all-flower
Distance between Centers
C-C(center to center
width between centers
a monopteras albus
CC
c-c
C
distance between two centers
a apriori estimate
center-to-center spacing
center-to-center distance
C to C
distance from center