The proportion of food expenses in consumption outlay (the Engel coefficient) dropped to 50.0 percent in 1994 from 54.2 percent in 1990.
1994年，城镇居民的食品支出占消费支出的比重（恩格尔系数），从1990年的54.2%下降到50.0%。
The applicability of Engel coefficient in China is an important academic topic.
恩格尔系数在我国的适用性问题是学术界重要议题之一。
Many scholars consider the changes of Engel 's coefficient as an important quota of sports consumption demand.
许多学者把恩格尔系数的变化，看成是体育消费需求的重要指标。
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