thereof ad由此
products thereof制品;该产品
PARTS THEREOF用于制鞋或修鞋的机械
application thereof应用前景
recommendations thereof推荐意见
thereof f由此;在其中
manufactures thereof毛皮;皮革制品鞍其及挽具
salts thereof其他无环单胺及其衍生物以及它们的盐
factors thereof因素分析
ADV（副词） Thereof is used after a noun to relate that noun to a situation or thing that you have just mentioned. 它的; 其 [正式][n ADV]
...his belief in God—or the lack thereof.
...他对上帝的信仰—抑或不信。