单词	aramid
释义	aramid /ˈaramɪd / noun Any of a class of synthetic polyamides that are formed from aromatic monomers, and yield fibres of exceptional strength and thermal stability.The most common fibers used in structural applications are fiberglass, aramid, and carbon.... The aramid fibers in the bead will stretch a little, typically enough to make a tight tire go on much more easily by hand afterwards. It is largely made from carbon and aramid, which replaces fibreglass and is said to be much stronger and lighter. Origin 1970s: from aromatic + polyamide.
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