Suí / zhe / jì / shù / jìn / bù， / xǔ / duō / píng / lú / yǐ / jīng / bèi / gèng / gāo / xiào / de / shè / bèi / qǔ / dài。

随着技术进步，许多平炉已经被更高效的设备取代。

With technological advances, many open-hearth furnaces have been replaced by more efficient equipment.