weightless

adj.

没有重量的，失重的，无重力的；

1. Knowledge is weightless, a treasure you can always carry easily.
   知识是一种无重的、可以轻易携带的珍宝。
2. Man is weightless in space.
   人在太空失重。
3. We feel weightless when the elevator descends.
   当电梯下降时，我们会感到失重。

Weightless chair, seat pan and backrest
The Weightless Economy in Economic Development
Weightless wealth: four modifications to standard IC theory
Weightless neural models: A review of current and past works
ORDERING WEIGHTLESS BINARY TUPLES ACCORDING TO HAMMING VALUE
The Weightless World: Strategies for Managing the Digital Economy
A brief introduction to Weightless Neural Systems
Demand-Driven Knowledge Clusters in a Weightless Economy
Human orientation and movement control in weightless and artificial gravity environments
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