directivity characteristic造句

英文例句大全为您提供directivity characteristic英文例句大全,directivity characteristic英文造句,关于directivity characteristic的英语句子,单词directivity characteristic怎么造句,directivity characteristic英文例句大全有哪些,哪些英语句子是关于directivity characteristic,英语单词directivity characteristic的句子,单词directivity characteristic如何造句,directivity characteristic怎么造句等。