| 释义 |
concentration noun 2large number/amount of sth in one place 大量聚积ADJECTIVE | VERB + CONCENTRATION | CONCENTRATION + VERB ADJECTIVEelevated, great, heavy, high, large 高密度；非常集中；高度集中◆The greatest concentration of traffic is downtown.交通最密集的地方是商业中心区。low 低密度varying 变化的密度calcium, glucose, oxygen, salt, etc. 钙的含量、葡萄糖的浓度、氧的含量、盐的浓度等◆Evaporation gradually increases the salt concentration of the water.蒸发作用使水中盐的浓度逐渐升高。geographical 地理上的集中VERB + CONCENTRATIONincrease 增加含量decrease, reduce 降低浓度；减少含量calculate, determine, estimate 计算／测定／估计浓度CONCENTRATION + VERBincrease, rise 含量增加；浓度升高◆The concentration of nitrates in the drinking water has risen in recent years.近年来饮用水中硝酸盐的浓度升高了。decrease, fall 浓度下降／降低 |