Each system produces about 25 kw which is enough to power about 10 homes.
一套系统的发电量是25千瓦这可满足十个家庭的能源需求。
来源: BBC documentary "The Mystery of the Sun"So the formula for Kw becomes simply the hydronium ion concentration times the hydroxide concentration.
水分子既可以释放氢离子，也可以接收氢离子。
来源: Crash Course Comprehensive EditionBut we can also use the Kw and the hydronium ion concentration to do a very simple division problem and find the hydroxide concentration.
当氢离子浓度上升时pH值会降低举个例子，一种弱酸比方说醋酸，被加到水中时。
来源: Crash Course Comprehensive EditionFor instance, words like quit, question, quarter, etc, were pronounced with the familiar " kw" sound in Anglo-Norman (and, subsequently, English) rather than the " k" sound of Parisian French.
例如，quit、question、quarter 等词在盎格鲁-诺曼语（以及后来的英语）中发音为熟悉的“kw”音，而不是巴黎法语中的“k”音。
来源: Illustrated History of English (Part 2)Each system produces about 25 kw which is enough to power about 10 homes.
一套系统的发电量是25千瓦这可满足十个家庭的能源需求。
来源: BBC documentary "The Mystery of the Sun"So the formula for Kw becomes simply the hydronium ion concentration times the hydroxide concentration.
水分子既可以释放氢离子，也可以接收氢离子。
来源: Crash Course Comprehensive EditionBut we can also use the Kw and the hydronium ion concentration to do a very simple division problem and find the hydroxide concentration.
当氢离子浓度上升时pH值会降低举个例子，一种弱酸比方说醋酸，被加到水中时。
来源: Crash Course Comprehensive EditionFor instance, words like quit, question, quarter, etc, were pronounced with the familiar " kw" sound in Anglo-Norman (and, subsequently, English) rather than the " k" sound of Parisian French.
例如，quit、question、quarter 等词在盎格鲁-诺曼语（以及后来的英语）中发音为熟悉的“kw”音，而不是巴黎法语中的“k”音。
来源: Illustrated History of English (Part 2)探索常用高频词汇