整体结构中，节点处受到梁轴向温度内力的作用，其相同温度下的变形及转角明显小于孤立节点。
The whole structure, because of effect of the internal beam axial temperature force caused by axial restraint, its deformation is smaller than isolated joints, but its critical temperature is higher.
如果任意两点之间有且只有一条通路，则构成了一棵生成树。即没有网络节点是孤立的。
It's a spanning tree if there's also at least one path between any two points, i.e., no network nodes are left unconnected.
制造商们在他们的产品中植入了3千万个传感器，将各种本来相互孤立的设备转化为物联网中的一个个数据节点。
Manufacturers have embedded 30m sensors into their products, converting mute bits of metal into data-generating nodes in the Internet of things.
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