求翻译：　　我公司研制的软密封中线对夹式蝶阀，双偏心法兰式蝶阀结构紧凑，90°回转开关轻松，密封可靠，使用寿命长，被广泛用于水厂、电厂、钢厂、造纸、化工、饮食等系统供排水中，作为调节和截止使用。是什么意思？

　　Our company develops soft sealing of center-line wafer butterfly valve, pair of partial flange type butterfly's valve structure is compact, 90 ° rotary switch easily, sealing reliable, long life, are widely used in water works, power plant, steel factory, papermaking, chemical industry, diet system, such as water supply and drainage, as regulation and due to use.