真空; 真空状态; 真空度; 空洞;
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.
Our product range contains upright vacuums , dry tank vacuums, wet tank vacuums and special products.
我们的产品包含直立真空, 真空干燥罐,真空湿坦克和特殊产品.
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.
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.
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