leach 英 [liːtʃ]   美 [litʃ]

leach

leach  英 [liːtʃ] 美 [litʃ]

n. 过滤;过滤器  vt. 过滤;萃取  vi. 被过滤 

进行时:leaching  过去式:leached  过去分词:leached  第三人称单数:leaches  名词复数:leaches 

The live ones would have been green, but in alcohol the yellow pigment is the first to leach, giving them their present turquoise colour. 这种蛇活着时本来是绿色的,但是在酒精中,黄颜色首先被溶解掉了,因而呈现出现在绿松石般的颜色。
Spreading wastewater over fields, and allowing it to leach back through the soil into local waterways, turns out to be a reasonable way to purify it. 将废水浇灌到田里,这些水经过土壤的过滤后又重新流回当地的水系,这已经被证明是非常合理的污水净化方法。

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  • n. 过滤;过滤器
  • vt. 过滤;萃取
  • vi. 被过滤
  • 1. The live ones would have been green, but in alcohol the yellow pigment is the first to leach, giving them their present turquoise colour.

    这种蛇活着时本来是绿色的,但是在酒精中,黄颜色首先被溶解掉了,因而呈现出现在绿松石般的颜色。

  • 2. Spreading wastewater over fields, and allowing it to leach back through the soil into local waterways, turns out to be a reasonable way to purify it.

    将废水浇灌到田里,这些水经过土壤的过滤后又重新流回当地的水系,这已经被证明是非常合理的污水净化方法。

  • 3. Although there is still some debate about what concentrations of chemicals leach into food from plastics at high temperatures, for me, it was worth $20 in glass bowls to not have to think about it.

    但是在高温下,是否会有化学物品从塑料容器渗透到食物内仍存在争议,所以我认为花20美元买个玻璃碗就完全不用考虑这个问题了,这是十分物有所值的。

  • leach (v.) Old English leccan "to moisten, water, wet, irrigate" (see leak (v.)). The word disappears, then re-emerges late 18c. in a technological sense in reference to percolating liquids. Related: Leached; leaching. Hence leach (n.) "a separation of lye or alkali in solution."
leach / liːtʃ ; NAmE liːtʃ / verb ( technical 术语 ) 1 [intransitive ] leach(from sth) (into sth) | leachout/away (of chemicals, minerals, etc. 化学物质、矿物质等 ) to be removed from soil, etc. by water passing through it 沥滤;滤走 Nitrates leach from the soil into rivers. 硝酸盐由土壤渗入江河。 2 [transitive ] leachsth (from sth) (into sth) | leachsth out/away (of a liquid 液体 ) to remove chemicals, minerals, etc. from soil 过滤;滤去 The nutrient is quickly leached away. 养分很快就被滤掉了。 leach leaches leached leaching leach / liːtʃ ; NAmE liːtʃ /
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