工程就是运用科学原理来满足人类的需要。

Engineering is the application of scientific principles to meet human needs.

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随着人类对银杏的认识，研究的深入，天然银杏资源愈来愈不能满足人类的需要，人工栽培受到了普遍的关注。

With deeper understanding and study of Ginkgo biloba L, natural Ginkgo biloba L can't satisfy the needs of the people. The people follow with interest cultivation techniques of Ginkgo biloba L.

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纵观历史，海洋满足了人类的需要。

Throughout history the sea has served the needs of man.

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