The current situation and development trends of some main and new polymer additives at home and abroad were presented.

介绍了国内外一些主要和新型塑料添加剂的现状及发展趋势。

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Present situation and development trends of the fruit juice sector are briefly analyzed and it is indicated th at th...

并简要分析了果汁行业的具体情况和趋势，结合该机的优点，指出该机是具有发展前景的一种果汁提取设备。

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Furthermore, it elaborates on the current situation and development trends of domestic and foreign Power line carrier communication.

同时对国内外电力线载波通信的现状和发展趋势做了详尽的阐述。

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