後方 こうほう境界 きょうかい面 めん

kōhōkyōkaimen

1. Not the rear boundary surface.

1. Was the rear boundary surface.; Was the rear interface.

1. Rear boundary surface; Rear border interface

1. Rear boundary surface; Rear interface

1. It is not the rear boundary.; It's not behind.

1. It's not the rear boundary.; It's not the back interface.

1. Was the rear boundary surface.; Was the rear interface.

1. Rear boundary surface; Rear interface

1. Not a rear boundary surface.; Not the rear interface.

1. Wasn't the rear boundary surface.; Wasn't the rear interface.

1. Probably rear boundary surface.

1. Was not the rear boundary.; Was not the rear interface.

1. Wasn't the rear boundary.; Wasn't the back interface.

1. Probably the rear boundary surface.; Probably the back interface.

1. Was not the rear boundary surface.; Was not a rear interface.

1. If/when the rear boundary surface…; If the rear boundary surface were…

1. If/when the rear boundary surface…; If the rear boundary surface were…

1. If/when the rear boundary surface