at fixed periods
词语: at fixed periods
解释: 定期
词性: 介词
词典: 船舶专业英汉词典
at fixed periods 相关解释
at fixed periods 〔名词〕定期
at fixed periods 〔副词〕定期
定期 definite period;at regular intervals;at fixed period
定期 regularity
at fixed periods
词语: at fixed periods
解释: 定期
词性: 介词
词典: 船舶专业英汉词典
at fixed periods 相关解释
at fixed periods 〔名词〕定期
at fixed periods 〔副词〕定期
定期 definite period;at regular intervals;at fixed period
定期 regularity