vacuums造句

Excessive energy is also required to achieve appropriate pressures and vacuums.
还需要额外的能量来造成所需的压力和真空.

My personal theory is that needs and desires create mental vacuums.
我个人的理论是,需求和欲望制造了思想真空.

Both vacuums and pure oxygen conditions are unfavorable for survival.
无论是真空还是纯氧环境,都不利于生存.

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