Tyre designers have therefore sought to improve fuel economy by reducing rolling resistance.
轮胎设计者因此力求减少滚动阻力以提高能源利用的经济性。
2
The high resistance ground has obvious advantages in reliability, safety and economy, which is worth to be popularized in a wider scope.
在可靠性、安全性和经济性等方面，高电阻接地有较明显的优势。高电阻接地还可以在较大范围推广应用。
3
In Australia, RBA Stevens' speech was relatively optimistic on the economy, which supported the AUDUSD rally to 1.0941 from 1.0821 (pushing through 1.0880 resistance).