而另一方面，缅因大学的拱梁可以在现场构建——纤维布套充气、弯曲成简单形状，用真空泵灌注树脂。
The University of Maine arches, on the other hand, can be fabricated on site — the fabric inflated, bent around a simple form and infused with resin using a vacuum pump.
你可以在树屋的每一侧安装一套有缆绳和螺栓的昂贵系统，或者安装一个房屋专用的自由浮动梁。
You can either install an expensive system of treehouse cables and bolts or rig your own free-floating beam.
“它可以通过两套系统获取所需的性能，”梁教授介绍说。
"It captures the desired properties of these two systems," says Leung.
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