The data structure is in effect "frozen" until the mutex is unlocked.
那个数据结构实际上是“冻结”了，直到互斥对象被解锁为止。
2
It permits simultaneous viewing for up to 20 participants and is interactive, allowing the image to be frozen, rotated and zoomed up to the resolution limit of the data.
它最多允许20名人员同时观看并进行互动，使图像冻结、旋转和缩放分辨率。
3
Second: do not try to put the security label on the outside, too cold because the outdoor temperature is too low, the label of the data will be frozen, frozen glue.