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- Sealed under low pressure or a partial vacuum. 抽空密封的在低压或部分真空状态下密封起来的
- environment under low pressure 低压环境
- Applications:Suitable for conveying liquefied petroleum gas under low pressur for household daily use. 用途：适合家庭日常低压输送液化石油气使用。
- There is foreign particle in die cavity and the mold protection under low pressure exceeds the reset time. 当模腔内有异物,低压模保超过设定时间时。
- Case B was redesigned based on Case A in order to meet the needs of enhancive warhead mass, but it burst under low pressure. 为满足弹头质量增加的需要，在设计方案A的基础上研制了B壳体，但B壳体在试验中发生了低压爆破。
- The results indicated that Penglai crude could be processed as ordinary crude after hydro-upgrading under low pressure and high LHSV. 研究结果表明：在低压、高空速条件下，低硫高酸的蓬莱原油经加氢改质后可作为普通原油加工；
- The liquid drawn off from the bottom of the first fractionating column, the primary fractionating column, is fractionated again in another column under low pressure. 从第一个分馏塔即初分塔底部下来的液体，再在低压下进入其余的分馏塔分馏。
- The key technology of the brake locking and release for heavy haul freight cars applied by the retarder has been realized under low pressure transmission. 解决在低压传动条件下，实现减速器对重载货车的制动锁闭和缓解解锁的关键技术。
- The structure characteristics and operation principium of new type pilot operated all open safety valve under low pressure and vibration working conditions are introduced. 介绍一种在超低压和振动条件下工作的先导式全启安全阀的结构特点及工作原理。
- The nozzle working pressure also influences the fire suppression effectiveness,and it is found that the extinguishment time is shorter under lower pressure. 系统的工作压力也对细水雾的灭火性能有影响,在较高的工作压力下,细水雾的平均灭火时间较短。
- Objective To study the cultivating technique of wheat under low pressures as to establish the basis of developing hypobaric controlled ecological life support system. 目的研究低压条件下小麦的培养技术,为建立低压受控生态生保系统奠定基础。
- The nozzle working pressure also influences the fire suppression effectiveness, and it is found that the extinguishment time is shorter under lower pressure. 系统的工作压力也对细水雾的灭火性能有影响，在较高的工作压力下，细水雾的平均灭火时间较短。
- Sealed under low pressure or a partial vacuum 抽空密封的在低压或部分真空状态下密封起来的
- Pollution and climate change put the environment under pressure. 污染和气候变化给环境带来很大的压力。
- water injection under low pressure 低压注水
- The colloidal solution formed under lower concentration conditions has zero free water and is with large volume fraction,the advantage of which is good deformational ability at low pressure gradient. 形变悬浮胶体聚合物是一种高弹性胶体颗粒,具有溶涨速度快、吸水性强、分散均匀、溶液无色透明的特点。
- CAUTION: If the pressure seal gasket is not pulled up concentric to the body/bonnet top-bore axis, under lower pressure the gasket may not be properly seated.Consequently, leakage may occur. 警告：如果压力密封垫圈没有与阀体/阀帽顶部轴线处于同心为止，则垫圈在较低压力下可能不会适当固定，结果可能会产生泄漏。
- Ability to work in a tense environment under stress. 能够承受和缓解紧张的工作压力。
- Burning Behavior of Nitramine Propellant under Low Pressure 低压下硝胺发射药燃烧性能研究
- Analyses the differences of convection and evaporation heat transfer between human and environment under normal and low atmospheric pressure conditions, and gives the quantitative description. 分析比较了低压与常压条件下人体与环境之间对流换热和蒸发换热的差异，并给出了定量描述。
