单词	hexavalent
释义	hexavalent /ˌhɛksəˈveɪl(ə)nt / adjective Chemistry Having a valency of six.More than 95 percent of leather produced in the U.S. is tanned using trivalent and/or hexavalent chromium, the latter of which is an EPA-recognized carcinogen.... Chromium occurs in both trivalent and hexavalent (Cr VI) forms. Zinc-based materials and polymers are replacing hexavalent chromium.
随便看	acta actability actable Actaeon actant act drop acted-out acte gratuit acteme ACTH actidione actin actinal actinally actine acting acting allowance acting management acting manager acting order acting out acting over acting pilot officer actinia actinian

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。