polychloroprene
n. [高分子] 聚氯丁烯,氯丁橡胶
n.[化]聚氯丁烯,氯丁橡胶
head keratometric mutualism pageantry periscopical scotophase triply下载迅蛙App
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n. [高分子] 聚氯丁烯,氯丁橡胶
n.[化]聚氯丁烯,氯丁橡胶
head keratometric mutualism pageantry periscopical scotophase triply