救急，请英语高手帮忙翻译如下句子

Question

本文探究了正项级数敛散性的判别问题，从比式判别法的形式和本质思想出发，类比地推导出了一系列的新的判别法，再与原判别法作简单的比较，说明新的判别法的优势
要翻译的就是上面的一段话，这是小弟毕业论文的外文摘要，但是小弟英语水平实在不敢恭维，所只能请求各位高手。希望能尽快给出回答。因为是毕业论文，所以不能有语法错误，句子要比较通顺，拜托拜托！
另外，很多在线翻译都试过了，但是翻译的结果都不是很满意。

Answer 1

This essay discusses the convergence and divergence of positive series,and basing on the form and essence of ratio test,induces a series of new judgement methods by analogy.Then compares them with the original one and tells the advantages of the new methods.

应该说的过去，你看看吧！

Answer 2

This paper discusses the root-value judging from ratio, the form and substance, and deduced the analogy method, a series of new and original discriminant method is simple, the new method of advantage

Answer 3

This paper discusses the root-value judging from ratio, the form and substance, and deduced the analogy method, a series of new and original discriminant method is simple, the new method of advantage。

Answer 4

This article explores the convergence and divergence of positive series of discriminant problems, ranging from discrimination law in the form than the type and nature of idea, a series of analogies to derive a new criterion, and then with the original Criterion make a simple comparison shows that the advantages of the new Criterion