validity check

基本解释

The criteria of validity check are presented simultaneously.
同时提出块体搜索正确性检验标准。
The validity check of zero-sequence operating direction for transformer directional over-current protection is also essential.
另外还需要进行变压器零序方向过电流保护动作方向正确性的检查。
Validity check (Default: basic validity check): The validity check verifies that the data model follows the semantic rules for the model format
Validity check（默认值：basic validity check）：有效性检查，验证数据模型是否遵从模型格式的语义规则

Most printers look for a firmware update every time they receive a job but, for some reason, they rarely check the validity of an incoming file.
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This workaround relies on the fact that Microsoft is currently offering, for a time limited period, free upgrades for the Media Center add-on, and it is this process that is flawed because Microsoft does not check the validity of the original key used to activate the copy of Windows 8 Pro before dishing out another key.
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