1. The astronauts experienced zero G during their spacewalk.
宇航员在太空行走时经历了零重力。

2. The zero G environment allowed the scientists to conduct experiments in microgravity.
零重力环境使科学家能够在微重力中进行实验。

3. The spacecraft reached zero G as it entered orbit around the Earth.
太空船进入地球轨道时达到了零重力。

4. Training in a zero G simulator helps astronauts prepare for the challenges of space travel.
在零重力模拟器中进行训练有助于宇航员为太空旅行的挑战做好准备。

5. The sensation of zero G can be disorienting for those not accustomed to weightlessness.
对于不习惯失重的人来说，零重力的感觉可能会使人迷失方向。

6. Scientists are studying the effects of long-term zero G exposure on the human body.
科学家们正在研究长期零重力暴露对人体的影响。