美航宇局已暂定增加两次航天飞机（于１９９８年１月１５日和５月２１日发射）与和平号空间站的联合飞行。这两次新飞行使原定的对接总数增加到９次，并使和平号空间站能一直保持运行至１９９９年底。美航宇局原定的７次对接飞行任务的头两次已于１９９５年完成。这些任务... The United States Aerospace Agency has tentatively added two additional combined space flights with the space shuttle Sails (launched on January 15 and May 21, 1998). These two new flights increased the original total number of connections to nine and kept the Mir space fleet operational until the end of 1999. The first two rounds of 7 docking missions originally scheduled by the U.S. Aeronautics and Space Administration were completed in 1995. These tasks ...