To speed up the bottom slab construction is the key point for controlling the deformation generally.

加速底板施工是控制底板总变形量的关键。

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Different from legitimate knowledge given by traditional school education, the construction of educational knowledge based on network is bottom-up.

与传统学校教育所传授的“法定知识”不同，网络环境下的教育知识往往是自下而上建构的。

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Nanotech also allows for "green manufacturing"--manufacturing processes that can take place at ordinary temperatures, reducing energy costs, while the use of non-toxic catalysts minimize pollution and bottom-up construction leaves no wasted material behind.

FORBES: Nanotech Vs. The Green Gang