因素3：服务调用强制同步支持。
此属性称为强制同步属性。
This property is referred to as the force synchronous property.
液压上传动式结构，扭力轴强制同步。
The hydraulic drive type structure, torsional axis compels synchronization.
实际上，WebSphereEnterpriseServiceBus运行时对聚合边界中的任何服务调用原语启用强制同步属性。
In effect, the WebSphere Enterprise Service Bus run time enables the force synchronous property on any Service Invoke primitive within an aggregation boundary.
要在多线程环境中强制此保证，需要一个锁来同步线程。
To enforce this guarantee in a multithreaded environment requires a lock to synchronize threads.
在此情况下，同步协议强制以正确的顺序执行，所以ConTest只是生成合法的交错。
In that case, the synchronization protocol forces the correct order, so ConTest only generates legal interleavings.
但是同步还有另一个方面：正如JMM所指定，它强制实施某些内存可见性规则。
But synchronization also has another aspect: it enforces certain memory visibility rules as specified by the JMM.
这一原因是，无论是否使用了该协议，JAX - RPC 1.1都在请求程序和提供程序之间强制执行了一个同步交互。
The reason for this is that JAX-RPC 1.1 enforces a synchronous interaction between requester and provider, regardless of the protocol that is used.
大多数程序员都知道，synchronized关键字强制实施一个互斥锁(互相排斥)，这个互斥锁防止每次有多个线程进入一个给定监控器所保护的同步语句块。
Most programmers know that the synchronized keyword enforces a mutex (mutual exclusion) that prevents more than one thread at a time from entering a synchronized block protected by a given monitor.
在异步策略刷新时，软件安装扩展不能运行删除或安装操作，并将强制进行同步前台刷新。
Software installation extension cannot perform removal or install operations during asynchronous policy refresh and will force a synchronous foreground refresh.
漫游配置文件通常缓存在多个客户机上，稍后与服务器进行同步，因此无法为这样的存储区强制配额，也不报告当前大小。
Because roaming profiles are often cached on multiple client machines and later synchronized with a server, quotas cannot be enforced for such stores and the current size is not reported.
自动，强制闪光，禁止闪光，低速同步，防红眼。
自动，强制闪光，禁止闪光，低速同步，防红眼。
强制式模具同步机构，确保制品厚度一致，脱模平稳，成品率高。
Forcible tooling synchronous structure ensures the consistency of product thickness, the smoothness of unmolding and high rate of finished products.
自动，红眼移除，强制闪光，慢同步，强制关闭。
自动，红眼移除，强制闪光，慢同步，强制关闭。
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