直接动力
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The direct motivity viewpoint of innovation is an ideal summary of this problem.
创新直接动力观是对社会发展直接动力问题的理想概括。
·2,447,543篇论文数据,部分数据来源于NoteExpress
Rain energy and gravitational potential energy were original energies of rocky desertification form in nature ecosystem, and were direct or primary motivity.
石漠化形成的主要原动力是自然生态系统的雨水动能和重力势能,亦是其形成的直接动力或第一性动力。
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