You can think of this as externalizing composition, which accounts for a much larger proportion of code than inheritance in a typical application.
可以将它看成具体化复合（externalizing composition），在典型应用程序中，它的比重远远大于继承。
Aiming at limitation of common design method for mineral aggregate composition in mix proportioning, the paper advances a new numeral solution-relaxation for proportion.
针对混合料配合比设计中矿料组成设计常用方法的局限性，提出一种新的数解迭代法。
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