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- recycling of spent acid 废酸循环
- The acid cleaning units - used in iron and steel industry - produce a mass of spent acid.After being concentrated and circulated, the spent acid are decomposed in the Roaster. 钢铁企业轧钢酸洗机组中产生的大量废酸液，经浓缩循环后进入焙烧炉热分解。
- This recycling of funds brought benefits and risks. 这种资金回流的现象既带来得益,亦造成风险。
- The spent acid is passed on to be denitrated. 废酸则被送去脱硝。
- Recycling of rubbish costs money and requires special equipment. 垃圾的重复利用很花钱，又需要专用设备。
- She indulged in an orgy of spending. 她爱好大把大把地花钱。
- Listening to the radio is a lovely way of spending an evening. 听收音机是打发晚上时间的一种很有意思的方法。
- My wife thinks nothing of spending a hundred pounds on a new dress. 我妻子把花100英镑去买一件新衣服，看成是小事一桩。
- This method was uneconomic for it was impossible to recover the spent acid. 由于不能回收废酸，所以这个方法是不经济的。
- She followed her usual custom of spending Sunday at her villa at the seaside. 她按照通常的习惯，在海滨别墅度过了星期天。
- I'm not too enamored with the idea of spending a whole day with him. 我可不喜欢整天和他在一起。
- Fishing is a marvelous way of spending a day off. 钓鱼是一种极佳的休假方式。
- He also likes the recyclability of aluminum. 他还喜欢可回收的铝。
- I'm not too enamoured with the idea of spending a whole day with him. 我可不喜欢整天和他在一起。
- Recycling of liquid by-products (spent tanning liquors) utilizes solid residue, produced through enzymatic hydrolysis of chrome-tanned leather shavings, to reduce chromium content in liquor. 液体副产物（鞣液）中的有用固体残留物，通过酶水解，可以降低废液中的铬含量。
- The corrected FISE metho d of determining active hydrofluoric acid in spent acid solutions is fast, simpl e, accurate and consumes a little acid solution sample. 此法快速、简便，消耗酸液样少，测定值准确可靠。
- Fishing is a lovely way of spending a day off. 钓鱼是度假的好办法。
- Many local and state laws encourage the recycling of beverage containers. 许多地方和国家的法律鼓励饮料容器的再循环使用。
- The act of spending or passing the summer. 避暑渡过夏天的行为
- He is very cautious of spending money. 他花钱是非常小心谨慎的。
