原子 API 还支持位掩码（bitmask）操作。

You'll also find support for bitmask operations with the atomic API.

youdao

因此，如果长度值在0到127之间，那么我可以只执行该长度与0xff之间的一个按位AND操作。

Therefore, if the length value is between 0 and 127, I can simply perform a bitwise and operation between the length and 0xff.

youdao

理论物理学告诉我们对量子位进行的所有操作(除了测量以外)必须可撤消。

Theoretical physics tells us that every operation on quantum bits (except for measurement) must be undoable.

youdao