The content of dissolved trace metals (Cu, Pb, Zn, Cd) in the surface microlayer and subsurface water in the Nansha region was determined.
对南沙海区微表层和次表层中溶解态痕量金属铜、铅、锌、镉的含量进行了测定，并探讨了其与DOC的关系。
More specifically, this invention relates to a multi-microlayer film having a degradable polymer layer and a thermoplastic elastomer layer.
更具体地说，本发明涉及一种具有可降解聚合物层和热塑性弹性体层的多微层膜。
Operating principles and processing conditions of microlayer/nanolayer coextrusion technology as well as the recent development in its application were summarized.
介绍了微米层 /纳米层共挤技术的工作原理、工艺控制及其应用领域的研究进展。
Operating principles and processing conditions of microlayer/nanolayer coextrusion technology as well as the recent development in its application were summarized.
介绍了微米层 /纳米层共挤技术的工作原理、工艺控制及其应用领域的研究进展。
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