The micro energy director can control the flow of the melting-polymer effectively and can obtain the uniform sealing surface and high quality precise sealing.

该种微导能结构有效控制了聚合物熔融流延，获得了均一的封接面，可实现高质量精密封接。

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Richard Besser, acting director of the U. S. Centers for disease Control and Prevention, said that over time 'more severe' cases of disease are likely to surface.

美国疾病控制预防中心代理主任贝瑟(richard Besser)说，随着时间的推移，将会出现更严重的病例。

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Richard Besser, acting director of the U. S. Centers for disease Control and Prevention, said that over time 'more severe' cases of disease are likely to surface.

美国疾病控制预防中心代理主任贝瑟(richard Besser)说，随着时间的推移，将会出现更严重的病例。

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