Helen described life in a weightless environment during her period in space.

海伦描述了她身处太空时失重状态下的生活。

《柯林斯英汉双解大词典》

The heart does not work as hard in a weightless environment as it does in an environment of gravity.

在失重状态时心脏不会像在有重力时那样激烈的跳动。

youdao

Living in a weightless environment does curious things to the body; after all, our entire physiology evolved in the presence of gravity.

在失重的环境下生存会让我们的身体产生奇怪的现象；我们的整个生理机能毕竟还是以重力为前提的。

youdao

It would provide information on the controls needed in the near weightless environment of lower space.

VOA: special.2010.07.07

The weightless environment provides a unique perspective on physical systems and processes, and is helping researchers to better understand disease and to develop new materials.

BBC: Virgin spaceship aims to be science lab

This time, Dragon capsule's sensors, navigation computers and automated propulsion system, never before fully tested in the harsh environment of space, are supposed to maneuver the capsule in a weightless ballet to within 1.5 miles of the space station and then maintain control as Dragon drifts closer.

WSJ: SpaceX's Pioneering Flight Plans