1·They have a wingspan of about 78 feet (23 meters).
他们有一个约78英尺(23米)的翼展。
2·If it flew, its wingspan is likely to have exceeded 13 feet.
如果会飞的话，它的翼展有可能超过13英尺。
3·It has a 150-foot wingspan, will cruise at approximately 150 knots and can carry up to a 450-pound payload.
它有一个150英尺的翼展，将巡航约150海里，可以携带多达450磅的有效载荷。
4·Solar Impulse, whose wingspan is the same as an Airbus A340, flew 26 hours and 9 minutes, powered only by solar energy stored during the day.
这架名为“太阳驱动”的飞机有着与空客A340一样宽的翼展，夜间飞行完全由白天吸收的太阳能驱动，共飞行了26小时零9分钟。
5·Size is more than just body length, but also wingspan and feather length.
体型不只包括体长，还包括翼展、羽长。