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起始时间 02:05Making the Dam's Door

How to make dam working model for school Project

YouTubeArt Bird

起始时间 00:08Introduction to Dams

What is a dam? | Kid's Learning

YouTubeVidMaker - 3D MovieMaker for Kids

起始时间 00:47Building Process

How to build a dam

YouTubeInteresting Engineering

起始时间 0:00Introduction to Building a Dam

Building a Dam On a Wet Weather Creek

YouTubeKarl Childers

起始时间 03:37Costs Associated with Building a River Dam

Dams: Why Are They Important? | Man-made Lakes | A Lesson For Kids |

YouTubeKidsMathTV

起始时间 01:05Building a Massive Hydroelectric Dam

Blood, concrete, and dynamite: Building the Hoover Dam - Alex Gendler

起始时间 00:11Introduction to Dam Construction

How to Build a Dam

起始时间 00:11What are Dams?

Nate Builds a Dam: A Middle Schooler Exploring the World of Dams

YouTubeNate & Nessa The Explorers