实质性科学
实质性科学-
而在乐器用木材的选材与加工方面，也只是进行简单的介绍，并没有进行实质性的科学验证试验。
Moreover , it just gives a brief introduction about the material and processing of the timber for musical instruments , and it has no substantive scientific validation test .
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摘要目前中部六省旅游合作进入了实质性阶段，建立科学的合作动力机制和合作开发战略具有重要意义。
Regional tourism cooperation have stepped into substantial stage in the six provinces of central China now , so it is very important to probe into the motivation mechanism and development strategy of regional tourism cooperation .