中医药不但有保健治病的价值，还有副作用小或无的价值。
TCM not only has the value of health care and treatment, but also little or no side effect.
如果已知锁定是无争用的但是难以避免或删除同步指令，则对这些锁定花费一点小的确定的开销不失为明智的做法。
It can be desirable to have a small and deterministic cost for locking that is known to be uncontested but where synchronization directives are hard to avoid or remove.
这里使用的简单测试是说明一个无争用同步的代价要比创建一个对象或查找一个 HashMap 的代价小。
The simple tests used here suggest that an uncontended synchronization is cheaper than the cost of an object creation or a HashMap lookup.
应用推荐