但是市场上的密码锁大部分都是用于一些大公司财政机构。
But in the market alarm apparatus majority of use in some big company fiscal institution.
一种串行化机构，使某一特定的资源限制给该锁的占有者使用。
A serialization mechanism by which a specific resource is restricted for use by the holder of the lock.
设计了伞齿轮完全闭塞式锻造的模架，核心部位刚性锁模机构具有良好的闭模特性。
A typical die set for closed-die forging has been designed, of which the core rigid close-die mechanism has a good property.
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