Translation of "conserve" into Chinese

What steps has your Government taken for the conservation, development and diffusion of science and culture?

贵国政府采取了什么步骤以保存、发展和传播科学和文化?

We must strike a balance between marine resources exploitation and the conservation of the marine environment.

我们必须在海洋资源的开发和保护海洋环境两者之间达成某种平衡。

New techniques in livestock production and fodder conservation are being developed.

畜牧业生产和节省饲料的新技术也正在发展。