pulling operation meaning in English

拉晶操作
下拉操作

Specifies the amount of compression that will be used by the compression routines during push and pull operations
指定压缩例程在推送和提取操作期间将使用的压缩量。
If the data from the server must be refreshed after a particular push to the server , the application does not allow additional changes to the table until the push and pull operations are both complete
如果在到服务器的特定推送之后必须刷新来自服务器的数据，则在推送和请求操作均完成之前，应用程序不允许对表进行其他更改。
Because a pull operation requires that the specific local table not be present at the time of the pull , and the table is created during the process of pulling the data from the server , the table being pulled cannot be accessed until the pull operation is complete
因为请求操作要求在推送时不存在特定本地表，而且该表是在从服务器请求数据的过程中创建的，所以在请求操作完成之前，无法访问被请求的表。