同时，通过折算不同规模和组成的小区的占地面积，确定了不同产流面积下的雨水蓄水池经济容积。
The economical volume of rainwater storage basin of different runoff yield area were calculated by converting area of residential districts with different scale and component.
针对目前大中城市居民生活小区停车难的问题，设计了一种经济型立体车库，介绍了其控制系统。
An economic solid garage is designed to solve the difficulty of parting in residential area in big cities, with is control system introduced.
家里缺点日用品什么的，周围几个小区的人都上我们这小店顺手就买了，既经济又实惠，还方便。
The people whose family lack of some convenience goods around the quarters are likely to come to our shop to buy in passing because it is economical, substantial and convenient.
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