He had a deep voice,which set himself apart from others in our small town,he was strong

he had a deep...in our small town这个句子是对的,主句后面加一个非限定性定语从句,这已经是一个完整句子了,但后面没有任何连词的情况下,使用逗号,后面又加了一个句子.犯了了语病,即,在一个句子中出现了两个谓语动词.
改正：
He had a deep voice,which set himself apart from others in our small town,and meanwhile,he was strong.答案把himself改成him，为什么噢，这确实也是一个问题，原谅我刚才没有看出来，嘻嘻。himself是反身代词。反身代词用于强调时经常作主语或宾语的同位语,一般置于所强调的词的后面;但如果不影响理解,作同位语的反身代词其位置比较灵活，比如“The manager himself served the customers经理亲自为顾客服务”。但不能直接作为宾语。原句中的which set himselfapart from...（which引导了一个非限定性定语从句，这个从句修饰前面一整句话，即：他有一个低沉的嗓音，这一点把他从其他人中区别开来了，set...apart from...是使...从...分离的意思，set后面应该跟宾语，而反身代词不能直接作为宾语， 故改成him作宾语）