The value of an aggregate property, defined at any level, is concatenated with the value of its parent.

汇总属性的值是在任意等级定义，会与其父系的值串连。

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Inside lightweight aggregate concrete, no one has made systematical research on the change in microstructure to the influence of concrete property.

在轻集料混凝土内，微观结构的改变，对混凝土性能的影响，目前还没有人做过系统的研究。

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This thesis summarized the research history and achievements on the dynamic property of concrete and its component materials: cement mortar, aggregate and the interface between them.

本文首先对混凝土及其组成材料：水泥砂浆、粗骨料和两者的交界面的动态力学性能的研究历史和现有研究成果作了系统的总结。

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Since property accounts for so much of the financial system's aggregate balance-sheet, losses from real-estate busts are likely to be synchronised across banks.

ECONOMIST: Bricks and slaughter

And the point is that for all the decent performance of the shares and property held by the Church's pension scheme, their aggregate value is several hundreds of millions of pounds less than would be needed if they were cashed in and converted into allegedly safer bonds.

BBC: Holy pension hole