Use disk quotas to track and control disk space usage on this server.
在此服务器上使用磁盘配额跟踪并控制磁盘空间使用。
Use entrants log sheet to keep track of personnel entering and leaving confined space.
使用进入人员记录表跟踪进出有限空间的人员。
In this paper, the space free vibration analysis model for track structure is established.
本文建立了轨道结构空间自由振动模型。
In this paper, the space free vibration analysis model for track structure is established.
本文建立了轨道结构空间自由振动模型。
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