A small intestinal villosity microvessels model and a circulatory simulation system were made.

制作了一个小肠绒毛微血管模型和一个循环模拟系统。

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Its model involves a two-mirrored system that directs sunlight down an optical rod onto a small (1 square centimeter) photovoltaic cell.

它的模型有一个双面镜像系统。该系统直接把阳光投射进一块小型(1平方厘米大小)光伏电池的光学感应棒上。

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This Small Aircraft Transportation System (Sats) would divert pressure away from the "hub-and-spoke" model of air travel.

这种“小型飞机运输系统（Sats）”将可以为中心辐射型（Hub-and-spoke）的空中旅行模式分担压力。

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The essentials of the model, that system dynamics, in reacting to small changes in demand, have a huge detrimental impact on capacity levels, were introduced by Jay Forrester at the Massachusetts Institute of Technology in the 1960s.

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And yet the private insurance reimbursement model is literally built on a system of foisting huge overhead on small medical practices.

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