The principle of innovativeness: Contestants are expected to comprehensively use various materials and new techniques.

创新性原则：多种材料的综合使用和新技术手段的运用等。

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The principle of innovativeness: Contestants are expected to comprehensively use various materials and new techniques.

创新性原则：多种材料的综合使用和新技术手段的运用等。

youdao