Like a cascading style sheet, this type of processing instruction is optional, even for a transformation tool.

与级联样式表相似，这种类型的处理指令是可选的，甚至对于转换工具来说也是这样。

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A class for each style sheet instruction type that contains the logic for that instruction.

用于每个包含那个指令逻辑的样式表类型的类。

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This type of crash results when a kernel routine invokes a trap instruction.

这种类型的中断是由内核例程调用了trap指令引起的。

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Technology has enabled us to provide quality healthcare education to a student population that otherwise would not have had convenient and ready access to this type of instruction.

WHITEHOUSE: Leveraging Technology to Deliver to Prepare Rural Students for 21st Century Jobs | The White House

By recommending that children be introduced to reading by means of some "easy pleasant book, " Locke pointed the way for the creation by England's John Newbery two generations later of a new type of illustrated children's book in which, unrepentantly, amusement shared pride of place with instruction as the publisher's stated goal.

NPR: Excerpt: 'Minders of Make-Believe'