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单词	cavity barrier
释义	cavity barrier fire stop fire stop In a concealed, hollow construction, a material or member which fills or seals the open construction to prevent or retard the spread of fire.
随便看	sgccm sgcd sgcdpro sgce sgceg sgc-enabled certificate sgcep sgcf sgcg sgcgj sgch sgcha sgchs sgci sg cib sgcib sgcid sgcisn sgcl sgcm sgcmh sgcn sgcnz sgcp sgcpp

英语词典包含2567994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。