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计时设备
1、keeping away───使离开;远离
2、devious devices───诡计
3、keeping off───让开;不接近
4、keeping───v.(使)保持, (使)继续( keep的现在分词 ); (食品)保持新鲜; 保有; 保存;n.遵守; 一致; (与…)协调; 保管;v.拥有;占有;保持;遵守;抚养;兑现;记(日记)(keep的现在分词);n.拥有;维持;保护;一致;协调
5、devices───n.[机][计]设备;[机]装置;[电子]器件(device的复数)
6、keeping on───继续;穿着…不脱
7、time keeping───测时; 守时;记时;计工
8、keeping birds───养鸟
9、keeping green───保持绿色
1、This caching layer optimizes access to the physical devices by keeping data around for a short time (or speculatively read ahead so that the data is available when needed).───这个缓存层通过将数据保留一段时间(或者随即预先读取数据以便在需要是就可用)优化了对物理设备的访问。