• 岩浆形成地球深部,它是熔融物质混合物

    Magma occurs deep within the earth and is made up of a mixture of molten mineral materials.

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  • 聚丙烯石蜡混合物熔融挤出,使较高应力场下冷却分离得到弹性聚丙烯中空纤维

    Elastic polypropylene hollow fibers were obtained from the blend of polypropylene and paraffin oil which was extruded in melt and then cooled in a high stress field (phase separation occurred).

    youdao

  • 聚丙烯石蜡混合物熔融挤出,使较高应力场下冷却分离得到弹性聚丙烯中空纤维

    Elastic polypropylene hollow fibers were obtained from the blend of polypropylene and paraffin oil which was extruded in melt and then cooled in a high stress field (phase separation occurred).

    youdao

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