In these latter years, ECRD has gradually evolved as one of trunk streamtype of dam in the world.
近几十年来，土质心墙堆石坝已逐渐成为世界上高坝建设的主流坝型之一。
2
They also proved that, in principle, the overshot wheel, a type of wheel in which an overhead stream of water powers the wheel, should win the efficiency competition.
他们还证明，原则上，打捞轮（一种由高架水流驱动该轮的轮）应该会赢得效率竞争。
3
However, it is also possible to create specialized event readers for situations where the application (or a component of it) expects an event stream with certain type of content.