如果不能同时满足这四个条件，则控制或操作模式选择器必须使得设计和制造用来确保有安全干预区的其他保护措施起作用。
If these four conditions cannot be fulfilled simultaneously, the control or operating mode selector must activate other protective measures designed and constructed to ensure a safe intervention zone.
因为本例中的写操作违反了使用volatile的第一个条件，因此不能使用volatile安全地实现计数器——您必须使用锁。
Because the writes in this case violate the first condition for using volatile, you cannot use volatile to safely implement the counter — you must use locking.
对全体员工来说，安全的工作是雇佣的条件。我们不接受任何不安全行为、不安全条件和其操作。
Working Safely is a condition of employment for all employees. We will not accept unsafe ACTS, conditions and practices.
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