半 はん閉鎖 へいさ式 しきリブリーザー

han'e isa shiki riburiizā

1. Not a semi-closed circuit rebreather.

1. Was a semi-closed circuit rebreather.

1. With a semi-closed circuit rebreather.

1. Semi-closed circuit rebreather

1. Not a semi-closed circuit rebreather.

1. It's not a semi-closed circuit rebreather.

1. Was a semi-closed circuit rebreather.

1. Semi-closed circuit rebreather.

1. It is not a semi-closed circuit rebreather.

1. Wasn't a semi-closed circuit rebreather.

1. Probably a semi-closed circuit rebreather.

1. Was not a semi-closed circuit rebreather.

1. Wasn't a semi-closed circuit rebreather.

1. Probably a semi-closed circuit rebreather.

1. Was not a semi-closed circuit rebreather.

1. If it were a semi-closed circuit rebreather; Were it a semi-closed circuit rebreather

1. If it were a semi-closed circuit rebreather; If it is a semi-closed circuit rebreather

1. If/when a semi-closed circuit rebreather…; If using a semi-closed circuit rebreather…