在线观看黄A片免费网站-国产人成视频在线观看-国产精品永久久久久久久久久-中文字幕观看

* 信息類型：	基礎(chǔ)知識(shí) 科普短文專業(yè)術(shù)語(yǔ) 典型拓?fù)?/TD>
標(biāo) 題：	*
關(guān) 鍵字：	多個(gè)關(guān)鍵字請(qǐng)用“/”分隔，如：RoHS指令/檢測(cè)方法
信息來(lái)源：
鏈接：
責(zé)任編輯：
標(biāo)題圖片：	當(dāng)編輯區(qū)有插入圖片時(shí)，將自動(dòng)填充此下拉框
* 內(nèi) 容：	<P><FONT color=#0000ff>IEEE</FONT> Standard Dictionary of Electrical and Electronic Terms: Sixth edition Std 100-1996</P> <P>Uninterruptible power supply module (electric power systems in commercial buildings):</P> <P>A) A device or system that provides quality and continuity of an ac power source.</P> <P>B) A system designed to provide power automatically, without delay or transients, during any period when the normal power supply is incapable of performing acceptability.</P> <P>Offline operation (emergency and standby power):</P> <P>A) Pertaining to computer systems not under direct control of the central processing unit</P> <P>B) Pertaining to uninterruptible power supply systems whereby and inverter is off during normal operating conditions.</P> <P>Online operation (emergency and standby power):</P> <P>A) Pertaining to equipment or devices under direct control of the central processing unit.</P> <P>B) Pertaining to uninterruptible power supply systems whereby an inverter is on during normal operation conditions.</P>