1.xx的特征在于: xx is characterized by…
2.xx的2个重要特征是：Two critical characteristics of xx are …
3.爱因斯坦指出xx的特征如下：Einstein identified the following characteristicsof xx…
4.Generally,…一般来讲，原则上…千万不要用in principle，此原则非彼原则也
5.已经采用了：have adopted…
6.近年来：in recent years
7.over/during the past 10 years.比如我们说SC过去10年间发展很快，用over，over是一段时间的事儿；during是事情发生在什么期间，有时间点的意思。
8.出于各种原因：for a variety of reasons
9.此外，另外：moreover, in addition
10.即：“…, namely…”
11.A与B的区别在于：A and B differ in the terms of…
12.谈及，关于：In terms of…
13.这些区别是因为：some of the difference stem from…
14.为了让：In order for xx to …
15.很大程度上依赖于rely heavily on…
16.基于…is based on…
17.不是…而是…not…, but rather …
18.这方面的例子有…“…, exemplified by…”
19.严格限制：impose the stringent restrictions on…;受到这些限制：besubject to the restrictions.
20.产生这个问题的原因与…有关：The problem arises in part from …
[Tip]：多用although, however, while, moreover, in addition这样的词儿，句子之间的逻辑关系显得很清楚，读paper的人会觉得你的论文很清爽，hoho