Polymeric materials, with their various hierarchies of microstructure, may have metastable states present due to small phase size, composition, external fields and other causes.
具有多重微结构层次的聚合物体系可因小的相尺寸、组成、外场或其它因素而呈现亚稳态。
After the auditory bone chain, the tympanic membrane teach other people the external auditory meatus, causes the air vibration.
经听骨链、鼓膜传人外耳道，引起空气振动。
After the auditory bone chain, the tympanic membrane teach other people the external auditory meatus, causes the air vibration.
经听骨链、鼓膜传人外耳道，引起空气振动。
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