宇宙ステーション補給機
Inside cargo is typically transported to and from the space station in "the form factor of single Cargo Transfer Bag Equivalent (CTBE) [which is the] unit for size of bag used to transport cargo from visiting vehicles, such as SpaceX Dragon, Northrop Grumman Cygnus, or JAXA H-II Transfer Vehicle (HTV). The bags are sized at and limited in transport mass to each. CTBE units are also used to price, and charge, commercial users of US Orbital Segment stowage space.