習慣伴我成長的英語作文

篇一：英語作文寫作常用句型 (4)

. There is considerable amount of literature on planning

. However, these studies do not provide much attention to uncertainty in xx.

. Since then, the subject has been extensively explored and it is still under investigation as well in

methodological aspects as in concrete applications.

. Many research studies have been carried out on this topic.

. Problem of xx draws recently more and more attention of system analysis.

. Attempts to resolve this dilemma have resulted in the development of

. Many complex processes unfortunately, do not yield to this design procedure and have, therefore, not yet been automated.

. Most of the methods developed so far are deterministic and /or probabilistic in nature. . The central issue in all these studies is to