日韩最新毛片免费看|国产丝袜一区二区三区|波多野结衣中文字幕一区|亚洲一区二区三区高清视频|国产丝袜一区二区三区91|vr专区日韩精品中文字幕|亚洲欧美人成网站在线观看看|片多多影视剧免费观看在线观看

“(lin)ϵ҂
̩{h(hun)Ƽ޹˾
ַ̩к깤I(y)@^(q)ӭ|·98̖
Ԓ0523-86083801
棺0523-86083802
N۟ᾀ400-158-6088
E-maillhhb888@163.com
www.www.english300.com
λã >> „ >> „ӑB(ti)    „ӑB(ti)
ؽُUˮ̎g
Դ:̩{h(hun)Ƽ޹˾ | l(f)rg:2018-8-6 | g[Δ(sh)

 ؽُUˮ̎gľCϷ


늻WķٺͷǽٱMbo@ijЩµ|һNˇ^鱣C僮aƷ|ʹ僌Ӿƽ⻬^cwι̽Yǰ僼ϵ(PƤ)صϴɃ僺僼ĸҺϴɃˣһa^бȻų像UˮM像Uˮ̎ؽُUˮ̎


像Uˮ̎һNyԏصҸsĻؽُUˮ̎ˮ̎횸(j)像Uˮˮ|ˮcašlaؓcˮʽءؽˮ̎ˮ|sɷֲ׿ƣк軯Art~\kyȵؽȾ^Щ°»ͻ׃Ą|ΣO


像Uˮ̎ҪᘌƯϴUˮgUˮ僼ϴUˮˢϴƺ͘OďUˮԼڲ“ð©”aďUˮ߀ЏUˮ̎^ˮŷԼҵˮ像UˮȾh(hun)ҪЃɂ;һٝȸߵ像UҺŷһ^͵像Uˮ(ҪϴUˮ)ŷ


像Uˮ̎ĿnjUˮекж|Էx̎ʹж|׃ɟo



ؽُUˮgĬF(xin)


W

WʹUˮгܽB(ti)ؽD׃?yu)鲻ˮؽٻķкͳȡ?/span>


кͳ


ںؽٵďUˮмAMкͷʹؽɲˮĚʽԷxкͳdzõ̎Uˮ`CڲҪעŽc[1](1)кͳUˮpHֵߣҪк̎ſŷ;(2)UˮгжNؽٹUˮкZnPbSnAlȃԽٕrpHֵƫܽAҪpHֵзֶγ;(3)UˮЩx磺uֲ|пcؽγɽjҪк֮ǰ轛^A̎;(4)ЩwС׳to



턩ʹUˮؽxȥķcкͳă(yu)cǣؽܽȱܽȸҷpHֵ7—9֮g̎ďUˮһ㲻кȱc[2]wСγzw;턩ˮК򻯚waȾ˷ֹȾ}ӢWо˸M̎ďUˮxԵļxӺһؽx(ԓؽٵxƽȱҪȥؽȾ|ƽȸ)ڼMȥؽٵȏUˮеؽٵܽ⣬@ӏUˮԭеؽxӾͱMȥؽxȷxͬrֹкw򻯚ɺxӚ}


߀ԭ̎


W߀ԭ


像UˮеCrҪCr6+xΑB(ti)UˮͶ߀ԭCr6+߀ԭ΢Cr3+ͶʯһNaOHaCr(OH)3xȥW߀ԭ像Uˮ瑪õg֮һ҇VđԭΡܴܳˮ͸ߝȏUˮ_(j)Ͷ߀ԭIJͬɷ֞FeSO4NaHSO3FмSO2ûW߀ԭ̎CrUˮArһʯңUNaOHtˎMø̎ɱ@ǻW߀ԭȱc


Fw


FwgǸ(j)aFwԭl(f)չںCrUˮм^FeSO4ʹCr6+߀ԭCr3+, Fe2+Fe3+{(ji)pHֵ8ʹFexӺCrxӮaͨ՚┇貢ﲻ෴γtFw͹ˇgЪʽBm(x)ʽFwγɵ໯W(wn)ԸڹҺxÓˮFw̎CrUˮ؄emںؽxӵ僻ϏUˮ҇FwѽЎʮvʷ̎ďUˮ_ŷŘ˜ʣڇ價I(y)Б^


FwO了ͶY㡢aȾȃ(yu)cγFw^Ҫӟ(s70z϶)ܺ^̎}ȸв̎HgͽjUˮȱc


늽ⷨ


늽ⷨ̎CrUˮ҇ѽжʮĚvʷȥʸoȾؽٿɻõȃ(yu)cs30NUˮҺеĽxӿM늳e늽ⷨһN^̎gܜpܻCuAgCdȽёڏUˮ^늽ⷨɱ^һ㽛s늽⽛Ч^á


܄ȡx

܄ȡ[4]Ƿx̓|õķҺһҺ|Bm(x)xЧ^ʹ@NrҪx^xԵȡUˮؽһxӻxʽԗl£cȡl(f)jϷˮ౻ȡЙCȻډAԗl±ȡˮ࣬ʹ܄ѭh(hun)@ҪȡrעxˮMȡ^(yu)ԽȻ܄ȡ^еʧ^ԴĴʹ@Nһܴܵ



ĪؽYȥؽxӵһNЧ̎ؽُUˮлֲ̿ʯǘ֬̿b了ڏUˮБÏV̿Чʵ̎ˮ|y_Ҫһ像UˮAֲ̎|DZ^rѸֲɸֲ֬̎CrNiUˮгɹPоǼؽxӵǘ֬“(lin)؏ʹ10]@[5]øԵĺʯؽُUˮPb2+Hg2+Cd2+кܺõ̎Uˮؽٺ@ˮCŷŘ˜īIÓʯҲһNõճVXÓʯԗlŒCr6+ȥ_99%ˮCr6+ڇŷŘ˜ЌHǰ


Ĥxg

Ĥxø߷еxԁM|xļg늝BB͸Ĥȡ^V늝B̎價I(y)Uˮ̎UˮMɲ׃ڻزʹCu2+Ni2+Zn2+Cr6+ȽxӏUˮm늝B̎гO䡣B͸ѴҎ(gu)ģZnNiCrƯϴˮͻؽُUˮ̎÷B͸̎像Uˮ̎ˮԻF(xin)]·ѭh(hun)ҺĤ像Uˮоܶ࣬ЩIҺĤɻAՓоM뵽I(y)A҇͊WҺĤg̎ZnUˮҲAuUҺ̎[7]ĤȡgһNЧoȾķxgԓ헼gڽȡкܴMչ


xӽQ̎

xӽQ̎xӽQxUˮк|ķõxӽQxӽQ֬ʯȵxӽQ֬zͺʹ͡ǰxsɱڑܴܵxӽQǿQƄӵxc̎Һеxͨ^xӽQ팍F(xin)ƄxӽQĄxgȲͽQϵĹܻxӵH(sh)rxȱٱQxӽQQpá@NϵđԽԽ[11]ÓʯҪɷֵճˮÛԺáȱe^xӽQxӽQDžs^yȻʯڌؽُUˮ̎иă(yu)cʯ[9]ǺWܽYX}VȲȱe󣬾ЪصxӽQо[10]ʯďUˮȥؽxӵęC(sh)rxӽQpSxӽQȡռҪλNaClȻʯMA̎xӽQͨ^xӽQ^̣Uˮؽxӝȿɝs30ʯȥ~NaCl^ȥ_97%ϣɶQѭh(hun)Ҍ~ȥʲ


̎g


ڂy(tng)гɱsڴ͝ȵкȾy̎ȱc^̽оgܵ˂ҕSؽٶ΢оMչ\g̎ؽُUˮʬF(xin)l(f)չ^(j)ȥؽxӵęCͬɷ֞ﻯWԼֲޏͷ




ؽُUˮgչ


Sȫɳm(x)l(f)չ(zhn)ԵČʩѭh(hun)坍agԽԽܵ˂PעؽُUˮĩ坍aˇ|ѭh(hun)UˮõȾCϷAΰl(f)չδؽُUˮ팢ͻŽׂ棺


(1)؞ѭh(hun)ҕ坍ag_l(f)c;|YԴDʺѭh(hun)ʹ;Դ^pؽȾĮaȫ^̿YϏUˮCKF(xin)Uˮŷ


(2)ؽُUˮ̎gܶ\gǾ^l(f)չ?ji)ļgгɱЧɶȾȃ(yu)cS򹤳Wȼgİl(f)չ͑ãиЧͶԵľNɹ\gďVṩlѽȾġh(hun)ɲֲޏͼg۵ͬrH˭h(hun)߀ԫ@һĽЧ


(3)Cһwgδ像Uˮgğc像UˮNN價ˇܴHʹһNUˮ_ЧˣC϶Ngcһwg\


像Uˮ̎վš

 


像Uˮˮ|^xȡšǧfeÿһNˇضĿƅ(sh)Լ\еą(sh)ҪTĹˆTMӛ


(sh)׃ֱӛQOǷ\ҲДOϴrCϴЧ(j)ÿ찴rӛ@Щ(sh)䰸l(f)F(xin)(sh)(j)rԭεĹϷ򼰕r“(lin)ϵҹ˾ۺղT@Щϵԭ䰸


像Uˮ̎վճ„չ


1.ˆTÿՌ像S܇gMЙz_Uˮռ罹~ҺWЙCȾϵȲŷŵUˮվΪռ̎ҺȝȸߵďUˮҲһŷŷš


2ˆTÿ_ʼǰOMмęz飬@ڰl(f)F(xin)Ć}r磺ˮǷ©ˮȡ


3ˆTԓע_OO\ОԄӻք\еO_CҪ\вOēp磺O\ǰAεyTǷ_òڛ]ˮėl¿D


4ˆTO\к󣬑֕rӛO\Ѕ(sh)O\РrMбO(jin)Юro̎o̎ؓ؟˅R


5ˆTÿյOϴÿ̎혋ϴrCДϴˮȑȫCOLڷ(wn)\СdzVĤͷB͸ĤϴЧֱӛQˏUˮĻʺͳˮˮ|ԼĤʹÉ


6.ˆTÿ헲JмԴ_ϵy(tng)(wn)\С绯Wϵy(tng)t߀ԭrgҪˮϵy(tng)УA̎ϵy(tng)ÿϴһε


7ˆTÿ°rP]Uˮ̎Oȫ\еOUˮ̎վԓˆTMȫIJO(jin)CO(wn)\


8.Uˮ̎܇gl(wi)C܇gĭh(hun)l(wi)


9ˆT(1»2)OͣC\B(yng);SoԱC̎Oܲg\С

 
 
ӡ || P] ||
 һƪȫԄӼˎҪôF(xin)
 һƪӡȾUˮ̎š
| | ɽ| | ¡| | | ƽ| | | ͭɽ| Ȫ| ʩ| | | | | ţ| | | ˮ| | ޭ| | | ƽ| ϲ| ɳƺ| | Ϸ| | | | °Ͷ| ܱ| ڶ| ɫ| | ¹| | ˮ|