接触 せっしょく改質 かいしつ

sesshokukaishitsu

1. Not contact modification.; Not surface modification.

1. Contact modification with/by

1. Contact modification; Surface modification

1. It is not contact modification.

1. It's not surface modification.; It's not contact modification.

1. Was contact modification.; Was altered contact.

1. Contact modification.; Surface modification.

1. Is not contact modification.; Is not alteration by contact.

1. Was not surface modification.; Was not contact modification.

1. Probably surface modification.; Probably contact modification.

1. Was not surface modification.; Was not altered.

1. Wasn't modified.; Wasn't in contact with modification.

1. Probably surface modification.; Probably contact modification.

1. Was not surface modification.; Was not contact modification.

1. If/when contact modification…; If contact modification were…

1. If/when contact modification…; If contact modification occurs…

1. If/when surface modification…; If/when contact modification…