1.
Waste Exchange and Recycling Information Service [WERIS]
废物交换／循环再用资讯服务
2.
waste exchange and recycling programme [Centre of Environmental Technology Limited]
废物交换与循环再用计划〔环境技术中心〕
3.
A placenta and umbilical cord develop for nutrient and waste exchange Between the circulations of mother and fetus.
发育出胎盘与脐带作为母亲与胎儿之间的养分与废物交换之用。
4.
Studying on Treatment Beer Wastewater by the Combined System of Anaerobic Membrane Bioreactor and Ion Exchange;
厌氧膜生物反应器与离子交换工艺组合处理啤酒废水试验研究
5.
Study on Combination of Fenton Agent and Mineralized Refuse Bioreactor for Treatment of Wastewater from Ion-exchange Resin Regeneration
用Fenton试剂-矿化垃圾生物反应器联合处理离子交换树脂再生废水
6.
interchange gifts [letters]
交换礼物 [信件]
7.
To make an exchange of one thing for another.
交换用一物与另一物进行交换
8.
Waste treatment by ion exchange produces a reusable water.
用离子交换处理废水可产生回用水。
9.
Preliminary Research on Treatment of Fertilizer Plant Wastewater Using Ion Exchange Process;
离子交换法处理化肥厂废水基础研究
10.
A Study on the Treatment of Wastewater Containing Mn~(2+) with Ion Exchange Method
离子交换法处理含Mn~(2+)废水的研究
11.
uliar to a seminatural economy
半自然经济的物物交换
12.
Erythrocyte (red Blood cell or red corpuscle):Blood cell that carries oxygen from the lungs to the Body tissues.
红血球:一种血液成分,用来运送氧、二氧化碳、养分和与其它组织交换后产生的废物。
13.
and exchange gifts and greetings.
交换礼物，互致问候。
14.
gifts exchanged as a pledge of friendship
交换的象徵友谊的礼物.
15.
exchange present
互赠礼物，交换礼品
16.
Convention concerning the International Exchange of Publications
国际间交换出版物公约
17.
base-exchanging compounds
碱［阳离子］交换化合物
18.
Most trade was still done by barter.
大部分交易仍采用物物交换的方式。