Getting a good night's sleep has long been known to cement the day's memories, moving them from short-term storage into long-term holding, but new research shows that it's not automatic.
长期以来，人们一直认为充足的睡眠能巩固当天的记忆，使短期记忆转化为长期记忆。但一项新的研究表明，这种转化不会自动实现。
Automatic disconnection in case of exceeding holding forces.
超过持有力量的情况下自动断开。
The paper introduced an automatic level holding device composed of a liquid tank supported by a spring.
介绍一种由弹簧支承液槽构成的自动保持液面高度的装置。
The use of automatic hydraulic operation, which can be used for pressure relief valve can also be used as a holding pressure valve.
利用水力自动操作，即可以作泄压阀用又可作持压阀用。
The use of automatic hydraulic operation, which can be used for pressure relief valve can also be used as a holding pressure valve.
利用水力自动操作，即可以作泄压阀用又可作持压阀用。
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