It's formed by the accumulation and compaction of snow.

它是由积雪积累和压形成的。

This compaction combined with the lower water pressure pushing from beneath will slowly cause the city to sink over time.

随着时间的推移，这种压与来自下方的较低水压相结合，将慢慢导致城市下沉。

" A condition of sand compaction, " Kynes said.

“子压的情，”斯说。

They also reviewed construction records and photographs where no compaction equipment was  seen.

他们还审查了施工记录和照片，在这些照片中没有看到任何压设备。

So this includes supporting compaction of deleted files, nested data types, partial progress commits, and partition evolution support.

这包括支持删除文件的压缩、嵌套数据类型、部分进度提交以及分区演进支持。

She thought of the compaction tool and the other strange instruments in the pack.

她想到了背包里的压工具和其他奇怪的工具。

Fremen there were opening a way down into the sand with their compaction tools.

那里的弗雷曼人正在用他们的压工具开辟一条通往地的道路。