All these features enable the Dreamliner to burn about 15-20% less fuel than a commercialcraft of comparable size.
这些特点使梦想飞机的油耗要比同等尺寸的民航客机节省15%到20%。
2
Homebrewing-a process that "can be as simple as making soup from a can or as technically involved as small-scale commercialcraft brewing" -is covered in detail, as well it should.
This means that like a traditional, round ballon-and unlike the elongated dirigible blimps that have hitherto been used as serious modes of commercial transport-the craft is "directionless".