結果 : why are dams necessary
4:48

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

KidsMathTV
17,805 回視聴 - 1 年前
1:50

Why are there dams?

Why? Those curious questions kids ask
5,263 回視聴 - 1 年前
7:45

Should All Dams Be Removed?

Seeker
94,228 回視聴 - 2 年前
8:27

Are Dams Even Important for Pakistan?

TCM Originals
18,310 回視聴 - 2 年前

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0:44

Seqwater explains: Why don't we build more dams?

Seqwater
1,217 回視聴 - 2 年前
1:04

How Dams Produce Electricity

Mechanical Engineering
84,400 回視聴 - 8 年前
3:57

Why we should not build Dams? | Disadvantages of Dams

The Blinking Arrow
3,942 回視聴 - 1 年前

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4:28

Animation Explanation: Getting More from Dams

Jorge Ribas
35,499 回視聴 - 10 年前
1:41:02

The Know Show – adaptation and regeneration required

Andrea T Edwards
17 回視聴 - 2 日前 に配信済み
2:28

Purpose of Dams & classification of dams | Basic Civil Engineering

Pebbles Tutorials
37,413 回視聴 - 6 年前
5:42

How Important Are Dams?

GeoOld
24,049 回視聴 - 7 年前
24:49

All Important Dams of India | 2D Animation by Adarsh Gupta | UPSC GS1

StudyIQ IAS
619,850 回視聴 - 1 年前
8:24

ARE DAMS NECESSARY? A DOCUMENTARY

Bhaveesh Gakhar
37 回視聴 - 3 年前
2:13

Why dams need more water?

ABS-CBN News
3,642 回視聴 - 9 年前
1:51

why are sand dams necessary

john Astill
55 回視聴 - 11 年前
9:47

Hoover Dam | All the Secrets of the Engineering Wonder

Lesics
12,052,277 回視聴 - 2 年前
2:52

Dams advantages and disadvantages

Interview Questions
106,811 回視聴 - 5 年前
4:32

Why Dams Are Necessary For Pakistan What Are Benefits Of Dams

Gratifying
162 回視聴 - 2 年前
4:53

Geological conditions necessary for construction of dams

Rooore
1,147 回視聴 - 4 年前
4:24

Are big Dams necessary?, do we really need big dams? Big Dams- Pros& Cons

Gyanganga gyanganga
150 回視聴 - 3 年前