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Foamed materials containing many small cells which are not connected are good cryogenic insulating materials.
含有许多互不相通的小气囊,是优良的低温绝缘材料.
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The foamed materials were prepared by compression molding , and antistatic agent was applied to polyolefine.
在聚烯烃中添加抗静电剂,采用模压法制备了发泡材料.
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