UHMWPE (Ultra-high-molecular-weight polyethylene, sometimes shortened to UH) is a type of polyolefin. UHMWPE is synthesised from monomers of ethylene, which react together in the presence of a catalyst to form ultra-high-molecular-weight polyethylene. It has extremely long chains, with molecular weight numbering in the millions, usually between 2 and 6 million.

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To use the word "Dung" (Impartiality) to raise the Name is to shine the light on truth, to use the word "Luan" (Interpretation) to call the Name, is to understand the words. If the truth is not Named, it cannot enlighten, and so it is bound to "Dung" in order to be portrayed. Words, when unexplained, cannot be understood, so we must utilize "Luan" in order to to illustrate. When the truth has been portrayed, the words has been illustrated, then the practice and introspection can be left hanging. That is clear.