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- Calcium magnesium acetate(CMA)can be prepared by extraction of acetic acid from dilute acetic acid wastewater using trioctylamine and then by back extraction using dolomite lime. 用三辛胺萃取醋酸廢水中的醋酸,加入白云石灰乳反萃,可制得環(huán)保型除冰劑醋酸鈣鎂鹽(CMA)。
- Complex extraction treatment of wastewater containing 2-amino-4-methyl-5-chlorobenzene sulfonic acid (CLT - acid) was studied using 7301 - 1 - octanol - H2SO4 - NaOH as extraction - back extraction system. 采用7301-正辛醇-H2SO4-NaOH化學(xué)萃取-反萃取體系對CLT酸廢水進(jìn)行了絡(luò )合萃取處理試驗。
- A solvent was used as gold extractant and a sort of compound back extract reducer was used for reduction at one step in normal temperature. 用某溶劑作為金萃取劑,用某復合反萃還原劑在常溫條件下進(jìn)行一步還原;將箱式混合澄清槽經(jīng)改進(jìn)后作為萃取器。
- Liquid phase microextraction with back extraction 液相微萃?。筝腿?/li>
- Liquid-phase microextraction with back extraction 液相微萃取-反萃取
- Rose bushes shoot again after being cut back. 玫瑰叢修剪後還能再長(cháng)出新枝。
- He trudge three hour in the snow to get back home. 他在雪中跋涉三個(gè)鐘點(diǎn)才回到家。
- The crowd fell back to let the players through. 人群后退讓運動(dòng)員們通過(guò)。
- Do exercise every day and you'll be back in condition. 每天鍛煉鍛煉,你很快會(huì )恢復健康的。
- The ship beat back against a monsoon. 船逆著(zhù)季風(fēng)艱難地行駛。
- Keywords reversed micelles;back extraction;kinetics;lipase; 反膠團;反萃取;動(dòng)力學(xué);脂肪酶;
- I flap the flies away but soon they fly back. 我把蒼蠅趕走,但一會(huì )兒又飛回來(lái)了。
- I never lend books; you never get them back. 我的書(shū)決不外借,因為總是有去無(wú)回。
- She leaned her head back and whispered the news. 她向后仰著(zhù)頭,小聲說(shuō)出了這個(gè)消息。
- The talks have been put back to Friday morning. 談判推遲到星期五早上進(jìn)行。
- He hated to tuck his tail and back down now. 他討厭此時(shí)夾著(zhù)尾巴退回來(lái)。
- After a long coma the sick man slowly came back. 昏睡了好久以后,那個(gè)病人慢慢地恢復了活力。
- Back in Nigeria we used to play a lot of tennis. 我們以前在尼日利亞經(jīng)常打網(wǎng)球。
- The crowd fell back to let the ambulance through. 人群往后退,讓救護車(chē)通過(guò)。
- The teacher get a raspberry as she turn her back. 該教師轉過(guò)身去時(shí)有人用舌與唇發(fā)出嘲笑她的聲音。