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nonvacuum例句_nonvacuum英汉例句_nonvacuum双解例句_歐米惠必应词典
歐米惠必应词典

nonvacuum

N 开头单词

常见例句

  • Keywords electron beam welding;focus;nonvacuum;
    電子束銲接;聚焦;非真空;
    • 返回 nonvacuum