The wear mechanism of composites is mainly repeating toughness deform and fatigue flaking off.
表面复合材料的磨损机理主要是反复塑性变形和疲劳剥落。
Repeating the segment staccato is merely an introduction of an interruptive mechanism to the reed not the air!
这主要是为了帮助演奏者先熟悉发音以及用气流柱维持音色的感觉。
Repeating the segment staccato is merely an introduction of an interruptive mechanism to the reed not the air!
这主要是为了帮助演奏者先熟悉发音以及用气流柱维持音色的感觉。
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