lifting surface area
提升面面积
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Airships demonstrate a law of increasing returns: doubling the length increases the surface area (and hence weight) by a factor of four while the volume (and hence lifting capacity) goes up by a factor of eight.
ECONOMIST: Pushing the envelope
应用推荐
模块上移
模块下移
不移动