注意如果要指定一个逻辑运算搜索，操作符必须使用大写字母表示。
Note that to indicate a Boolean connection, the operator must appear in uppercase letters.
尽管和[]在运算期间使用相同的测试操作符，但是它们使用不同的逻辑操作符。
Although and [] use the same test operators during evaluation, they use different logical operators.
缓冲存储器周期的一部分，在这期间，逻辑与算术运算器必须中止操作或不能与存储器传输信息。
A portion of the buffer cycle in which the logic or arithmetic unit must cease operation or neither will be able to communicate with the memory unit.
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