data,legislation,security 有复数形式吗

data,legislation,security 有复数形式吗 legislation意思 Up to 480Mbit/sec data transfer这个是移动硬盘上的, DATA Data data data 英语翻译Features • CSA/NRTL Approved • Used for non-intrusive configuration and calibration of SEC 2000 gas detectors• Calibrates,checks and correlates data from any SEC detector on the data highway• Bi-directional infrare pending legislation什么意思 sec是什么 Sec是什么意思 sec是什么 AU sec. sec/axis 英语翻译breed specific legislation :how data can spare breeds and reduce dog bites麻烦各位了.这标题我怎么都看不懂...拜托来点靠谱的.这篇文章出自 the veterinary journal 文章第一段：the paper on dog bites in the net A HISTORY OF FACTORY LEGISLATION怎么样 legislation and transformation of charity什么意思 legislation and transformation of charity中legislation and transformation不应该连着解释么