decrease by
减少了多少：表示数量或比例的减少量。
常用释义
英式发音
美式发音
基本释义
- 减少了多少：表示数量或比例的减少量。
例句
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1·The accumulative coefficients of carps decrease by the rise of phenolate concentration.鲤体随酚浓度升高，浓缩系数下降。
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2·Alkaline treatment of wood flour makes flexural strength and flexural modulus of the composite decrease by 20.木粉的碱化处理使复合材料的弯曲强度和弯曲模量分别下降20。
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3·Its result is always the realization of the resistance decrease by enlarging space volume of karst passage way.其结果都是以扩大岩溶通道的空间体积来实现阻力减小。
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4·A similar situation occurred to social science and business which saw a decrease by 70% and an increase by 85% respectively.差不多的状况发生在社会科学与商务这两门课程上，两者分别出现了70%的下降和85%的增长。
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5·This five-year program stresses that energy consumption intensity per unit GDP shall decrease by 20% in the next five years.强调未来五年单位GDP的能源消耗要降低20%。
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6·Core simulation experiments showed that the pressure of water drive could decrease by 48% after surfactant drive (0.5 PV).岩心驱油降压模拟实验表明，表面活性剂体系驱替0.5倍孔隙体积(PV)，后续水驱替压力下降48%左右。
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7·Compared with the same reaction catalyzed by AlCl 3, the yield increase by 4.3%, and the amount of AlCl 3 decrease by half.该工艺与只用三氯化铝催化相比，三氯化铝用量减少一半，而叔戊苯收率提高4.3%。
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8·Noss's efforts seem to be paying off. He says he has seen employee satisfaction rise and turnover decrease by a noticeable percentage.诺斯的努力似乎已经渐收成效，他表示员工对公司的满意度大幅提升，员工跳槽的频率也明显降低。
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9·And it speaks to what I said is my concern that Child Main Nutrition decrease by only 1 percentage point while economy cotinues to...grow -I see.这也是我提过的我所关心的问题,经济还在高速增长的同时,儿童营养满足率,却掉了1个百分点，-我知道。
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10·Also by that time, scientists say, global greenhouse gas emissions must decrease by 50 per cent compared to levels at the turn of the millennium.此外，科学家们表示，到那时，全球温室气体排放量一定要比千年之交时的排放量减少50%。