What's wrong with my sentences.

burning

老外提出我的论文这几句话需要Please revise such sentences for grammar and clarity.
列出了三条
The ** bridges differ from conventional suspension bridges because they do not require massive end anchorages, and differ from cable-stayed bridges because they do not require very high pylons.

The success of the ** Bridge is an important step forward in the development of ** bridge construction.

The ** bridge is a new type of bridges, which combines the advantages of suspension bridge and cable-stayed bridge.

我找了些例句没有发现我的这几句话有什么毛病，郁闷中。。。

rainman68

The bridge differS from a conventional suspension ONE IN THAT IT DOES not require massive end anchorages. Also, IT differS from a cable-stayed ONE IN THAT IT DOES not require very high pylons.

Your sentences are indeed very confusing. I fixed the first one. You should be able to fix the other two.

burning

多谢rainman68 ，可我用because有什么错吗？我的这个句子和 I do it because I like it不是相同的吗？我只不过是两个句子用and连接，不过你改的确实很棒。

rainman68

There's nothing wrong with "because". It's just not that technical.

burning

Thank you. I get to know what you mean. I'm downloading your book now.

rainman68

Here they are:

The success of THIS bridge is an important step forward in the development of new bridge design and construction techniques.

The bridge design introduced in the present paper is novel. It combines the advantages of those of a suspension bridge and a cable-stayed bridge.

burning

再次感谢