日韩高清在线观看不卡一区二区,在线看片免费观看不卡,亚洲a片成人网址在线播放,亚洲 日本 欧洲 欧美 视频

˼h(hun)Ƽ޹˾|ܛˮO(sh),ȫԄܛˮO(sh),ȫԄܛˮ
W(wng)վ P(gun)҂ a(chn)Ʒ O(sh)S „ (jng)䰸 “(lin)ϵ҂
Ŀ(do)
001*7ܛˮ֬
I(y)ƯRؘ֬
ʳƷƯRؘ֬
001*7ܛˮ֬ (dng)ǰλã > a(chn)Ʒ > ܛˮ֬ > 001*7ܛˮ֬ >
001*7ܛˮ֬ ƯcƷķNЧ
 
     ܛˮ֬001*7732)xӽQ֬001*7Ư֬001*7֬ƯRܛˮ֬ܛˮ֬Ʒ DƬ rQܛˮ֬S
     ܛˮ֬njܛӲˮһNØ֬ͨ^xӽQg(sh)ʹˮӲС50 mg/L
֬ܛˮO(sh)佻Qԭ
     ֬ܛˮO(sh)ԭxӽQܛxӽQ֬ˮеCa2+Mg2+γˮҪɷݣÓQS֬(ni)Ca2+Mg2+֬ȥCa2+Mg2+Чu(dng)֬һ}Vx֮ͱM^̾}еʳ}ˮ_ϴ֬ј֬ϵӲxÓQSUҺųֻ֬֏(f)ܛQܡ
     cxӽQ^£
2RNa + Ca2+ = R2Ca + 2Na+
2RNa + Mg2+ = R2Mg + 2Na+
  ˮͨ^cxӽQˮеCa+Mg+ÓQNa+
     
001*7ܛˮ֬ ƯcƷķNЧôu“(lin)ϵ偠tܛˮO(sh)S
 



һƪ001*7ܛˮ֬Qһζ
һƪ732xӽQ֬늘/ʳƷ
(qun)У˼h(hun)�Ƽ޹�    Copyright  2008-2014
ַͨ݅^(q)Ԓ010-52851405
朽ӣ