Uhmw
abbr. ultra-high molecular weight 超高分子量
??? 情景例句
Let's give him our presents--now.
現在把我們的禮物送給爺爺吧。
I asked him to lend me a book , but he wouldn't.
我請他把書借給我，但是他不肯。
It was made in Germany in 1681.
是1681年德國造的。