As a last step in a poll operation, all control blocks are cleaned up.
作为poll操作的最后一步，要清除所有控制块。
Only control blocks that have been added to an event list are serviced.
只为已经添加到事件列表中的控制块提供服务。
Notice the control element in the sendmail blocks.
请注意 sendmail 块中的control元素。
These blocks may comprise a table , an index , or even the control file. While we.
这些数据块可能包含了包含了一张表，一个索引，甚至是一个控制文件。
A property USES code blocks that control how to set and retrieve its value.
属性使用程序码区块，控制如何设定和撷取值。
A property USES code blocks that control how to set and retrieve its value.
属性使用程序码区块，控制如何设定和撷取值。
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