在线观看亚洲精品专区-在线观看亚洲免费-在线观看亚洲免费视频-在线观看亚洲欧美-欧美freexxx-欧美free嫩交video

食品伙伴網(wǎng)服務(wù)號
 
 
當(dāng)前位置: 首頁 » 專業(yè)英語 » 專業(yè)知識 » 正文

What is hard water?

放大字體  縮小字體 發(fā)布日期:2007-08-29
核心提示:When water is referred to as 'hard' this simply means, that it contains more minerals than ordinary water. These are especially the minerals calcium and magnesium. The degree of hardness of the water exceeds, when more calcium and magnesium dissolve

When water is referred to as 'hard' this simply means, that it contains more minerals than ordinary water. These are especially the minerals calcium and magnesium. The degree of hardness of the water exceeds, when more calcium and magnesium dissolve.
Magnesium and calcium are positively charged ions. Because of their presence, other positively charged substances will dissolve less easy in hard water than in water that does not contain calcium and magnesium. This is the cause of the fact that soap doesn't really dissolve in hard water.

更多翻譯詳細信息請點擊:http://www.trans1.cn
 
關(guān)鍵詞: calcium and the of water in hard that water. is magnesium.
[ 網(wǎng)刊訂閱 ]  [ 專業(yè)英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關(guān)閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業(yè)英語
點擊排行
 
 
Processed in 0.169 second(s), 17 queries, Memory 0.89 M
主站蜘蛛池模板: 国产三级高清 | 婷婷色亚洲 | 韩国一级网站 | 免费观看欧美成人1314色 | 狠狠狠色丁香婷婷综合久久五月 | 4455永久在线毛片观看 | 久久精品人人爽人人爽 | 国产免费的野战视频 | 欧美色天使 | 嘿嘿嘿视频在线观看网站 | 亚洲五月婷婷 | 窝窝午夜看片 | 亚洲欧洲一区二区三区在线观看 | 国产三级在线视频观看 | 黄网免费观看 | 黄色网页在线播放 | 国产免费久久精品99久久 | 手机看片福利久久 | bt天堂网在线 | 欧美成人a视频 | 我爱操 | 台湾三级毛片 | 手机看片福利日韩 | 男女免费网站 | 久久综合爱 | 四虎在线最新永久免费播放 | 欧美xxxxx喷潮 | 午夜免费理论片在线看 | 一区二区三区高清不卡 | 99久久国产综合精品国 | 荡女妇边被c边呻吟久久 | 精品国产一区二区三区国产馆 | 成人看片免费无限观看视频 | 亚洲色图欧美在线 | 女人aaaaa片一级一毛片 | 午夜免费啪 | 日韩一级在线播放免费观看 | 亚洲乱强| 日本黄色大片免费观看 | 一区二区三区在线观看免费 | 国产又色|