求翻译：聚环氧琥珀酸是上世纪90年代开发出来的一种环保型阻垢剂，它具有优良的阻垢性能，且无磷、非氮、可生物降解性好，是现在阻垢剂的更新换代产品。是什么意思？

Is polyepoxysuccinic last century 90 's developed a green scale inhibitor agents, it has excellent scale inhibition, non-nitrogen, and phosphorus-free, biodegradable, good is now inhibitor replacement products.