Translation of "to conserve" into Dutch

I've figured out Why the ship's been trying to conserve power.

Ik weet, waarom het schip probeert energie te behouden.

International law is showing increasing concern for upland and mountain areas, primarily with a view to conserving their environment.

Bergen worden steeds belangrijker in het internationaal recht, vooral vanuit de invalshoek van milieubehoud.

We may not know them, we may not know their value, but we want to conserve them.

We kennen ze misschien niet, we kennen misschien hun waarde niet, maar we willen hen bewaren.

It means to reuse things to conserve our natural resources.

Dat is dingen hergebruiken om onze grondstoffen te conserveren.