Front cross member pipe

tapered pipe with square cross section

cross model cross mode

branch pipe welded directly to the run pipe

copper pipe and aluminum pipe

Pipe in Pipe

pipe in pipe casing

vinyl pipe PVC pipe

welding part of copper pipe and low corbon steel pipe

(+)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)