Cross-piling

cross model cross mode

(+)Cross-term

+ shaped cross section

∏-shape cross sectio

1*1 rib cross ovev V neck set in with

10-fold cross validation

Ⅰ Collagen cross linked c-telopeptide ICTP

Ⅰ Collagen cross linked c-telopeptide(ICTP)

28Si-scattering cross section

2-D minimum cross entropy

2-D minimum cross entropy(TDMCE)

2e triple differential cross sections

2n-removal cross section

2n-removal reaction cross section

4-element cross array

4f cross light path

4n-removal cross section

5-fold cross validation

5-fold cross validation method