Innovative wood technologies were used for the building structure to economize on the use of natural resources.

将木材用于建筑结构的技术创新表现，从而节约自然资源的使用。

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We should effectively protect, rationally exploit and economize on natural resources.

切实保护、合理开发和节约使用各种自然资源。

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We should effectively protect, rationally exploit and economize on natural resources.

我们知道，必须节约使用自然资源。

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