限制因素英语

restrict/ limit/ confine/ astrict

because of the limitation of some factors.

restrict 英[rɪˈstrɪkt] 美[rɪˈstrɪkt] vt. 限制，限定; 约束，束缚; [例句]There is talk of raising the admission requirements to restrict the number of students on campus有传闻称将通过提高录取条件来限制在校学生的数目。[其他] 第三人称单数：restricts 现在分词：restricting 过去式：restricted过去分词：restricted

But due to the restriction of various factors

大范围推广项目实施的限制因素the limited elements of spreading the item's implementation in a large area