01

今日长难句

Under modern conditions, this requires varying measures of centralized control and hence the help of specialized scientists such as economists and operational research experts.

02

词汇解析

✅varying adj. 不同的

✅hence adv. 所以

✅operational research 运筹学(通过数学方式 解决决策问题的学科)

03
结构分析

主干：主this + 谓requires + 宾1 varying measures + 宾2 the help(hence 表示所以 说明 两个宾语之间存在因果关系)

修饰：such as 作同位语 举例说明

修饰：介词短语 under 作条件状语

04

参考译文

Under modern conditions,this requires varying measures of centralized control andhencethe help of specialized scientistssuch as economists and operational research experts.

现代条件之下，这需要，不同维度的集中控制，因此，这也需要专家的协助，比如:经济学家和运筹学家。