The garbage collector moves valid blocks to the tail of the log, skips invalid or obsolete blocks, and erases them (see Figure 2).
垃圾收集器将有效块移动到日志的尾部，跳过无效或废弃块，并擦除它们（参见图2）。
An argument can be either valid or invalid but not true or false.
论点可能有效或者无效，但是不能或真或假。
Both assume that all inputs are valid and no checks for invalid state are made.
假设所有的输入都是有效的，并且没有对无效状态的核查。
If the current checkpoint was invalid, the file system need only step back to the last good checkpoint for a valid file system.
如果当前检查点失效，文件系统只需回滚到上一个有效的检查点，重新获得有效的文件系统。
Listings 2, 3, and 4 are very simple examples that are all valid against Listing 1. Listings 5 and 6 are invalid.
清单2、3和4都是非常简单的例子，对于清单1来说都是有效的，清单5和6是无效的。
The framework makes it possible to define flexible rules about how long the data in cache is valid, where to store it, and what to do with invalid cache items.
这个框架可以灵活地定义缓存里的数据多久有效，在哪里存储它，以及如何处理无效的缓存项。
The real alternate source may provide valid IDs, invalid IDs, or no IDs.
实际的备用源可能提供有效的ID、无效的ID、或者不提供ID。
You're absolutely right statements, and propositions can be true or false but arguments can't be true or false, arguments can only be valid or invalid.
你们的论点完全正确，命题有真假，但是论点不能或真或假，论点只能有效或无效。
Because true is not a valid item, the tree grid will skip this invalid child item, which results in nothing happening.
树型网格将跳过这个无效的字条目，这就导致什么都没出现。
Handle SQL exceptions in your code and run your applications to find out whether the SQL is valid or invalid.
在代码中处理SQL异常并运行应用程序，以此判断SQL是否有效。
Make sure this is a valid image type (.jpg,.gif,.bmp, and so on) — otherwise you will get an error stating that an invalid content type was provided.
确保该图象文件的类型有效(.j pg、。gif、.bmp等等)——否则将出现一个错误，提示文件类型无效。
You realize the value of gnosis.xml.validity when you want to modify an object in either valid or invalid ways. For example, here is a valid modification.
当您想要以有效或无效方法修改对象时，您会意识到gnosis . xml . validity的价值。
Finally, enter an invalid number such as the text test and press Validate once more. The field will highlight once more and the icon tooltip will reveal the message Not a valid number.
最后输入一个无效数字，比如文本文字test，再次单击Validate，字段再次突出显示，图标提示框将出现消息Notavalidnumber。
If there are no errors in the server program, the forward is valid; if there are errors, it will be invalid.
如果服务器程序中没有错误，那么转发就是有效的；如果有错误，那它就是无效的。
The test class contains two tests: one to authenticate a valid user and another to authenticate an invalid user.
这个测试类包含两个测试：一个是鉴定一个无效用户，另一个是鉴定一个有效的用户。
The result of the authentication process is simply valid or invalid.
身份验证过程的结果为有效或无效。
Frequency. To make yourself less vulnerable in this area, you must differentiate between valid and invalid rejection.
频率在这个领域工作不要太敏感，你需要区分对不同的拒绝进行区分。
This argument is valid and this argument is invalid.
这个论点有效，这个论点无效。
Has a small icon that changes if the content is valid or invalid.
在输入内容是否正确时会显示一个小图标。
So it's a valid argument but has false premises. Okay what about if it is an invalid argument with false premises.
这是个有效的论点但是有假前提，如果是无效论点有假前提呢？
An inductive argument is more or less strong whereas deductive arguments are either valid or invalid. Okay What does an argument have to have in order it to be sound?
归纳论点或多或少有力，但是演绎论点有效无效，什么能说明论点完好？
If the xpath expression specified is invalid, an xpath-valid error is reported.
如果指定的xpath表达式是无效的，将报告xpath - valid错误。
This is clearly a valid restriction, but is invalid in XML Schema 1.0.
这明显是一个有效限制，但是在XML Schema 1.0 中却是无效的。
Invalid query: make sure parenthesis are balanced and the custom query consists only of valid criteria Numbers and the Boolean operators and, or, and NOT.
查询无效：确保括号完整，自定义查询只包含有效标准数字以及布尔型运算符and、OR和NOT。
The status of the message is indicated by the value of the SerializerKey variable which is set to Y for a valid message and to N for an invalid message.
消息的状态是由SerializerKey变量的值来表示，“Y”代表有效消息，“N”代表无效消息。
A state name such as TX may be considered invalid by VeriSign, in which case you would receive the error the state value used in the submitted CSR is not valid.
如果输入诸如tx之类的州名称，可能会被verisign视作无效，这时您将接收到错误消息thestatevalueusedin thesubmittedCSR is not valid。
If the valid duration of the patent right expires or the patent right is declared invalid, the patentee may not conclude a patent exploitation license contract relating to that patent with others.
专利权有效期限届满或者专利权被宣布无效的，专利权人不得就该专利与他人订立专利实施许可合同。
This is perhaps overly simplistic, as it does not handle all cases of valid and invalid markup correctly, but it might work OK if used to process only snippets of valid HTML.
这也许过于简单，因为它不能正确处理所有情况的有效和无效标记，但它处理有效HTML片段时应该没什么问题。
Figure 2 shows the result of executing this program with valid and invalid authentication.
图2给出了使用有效身份验证和无效身份验证来执行这个程序的结果。
Figure 2 shows the result of executing this program with valid and invalid authentication.
图2给出了使用有效身份验证和无效身份验证来执行这个程序的结果。
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