NOR technology requires a precursor step to clear all values to zero before the Erase operation can begin.
NOR技术需要通过一个准备步骤将所有值清零，然后再开始Erase操作。
DB2 UDB does not have native support for bit or Boolean data types, neither for bitwise operation nor for Boolean algebra operations.
DB 2 UDB没有为位数据类型或布尔数据类型提供本机支持，它既不支持逐位操作，也不支持布尔代数操作。
Unlike Phasers, however, CyclicBarriers do not support the dynamic addition or removal of threads; nor do they support one-way synchronization or split-phase operation.
然而它并不能像Phasers那样做到线程的动态添加和移除，以及单向同步和分相操作。
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