delay (int)注意：按毫秒计。
最后一个必需的属性是duration，该属性指定动画所经历的时间，以毫秒计。
The final required attribute is duration, which specifies the time for this animation step in milliseconds.
延迟是数据包从一个地点到另一个地点然后返回这一个来回所花费的时间(通常以毫秒计)。
Latency is the amount of time (usually measured in milliseconds) that a packet of data takes to get from one point to another and then back in a round trip.
完成一个事务的时间（以毫秒计）在单节点上是：常规锁——1877，显式写入锁——1225，而使用“脏接口”的话是181。
The time (microseconds) to perform the transaction for a single node were 1877 with regular locking, 1225 with an explicit write lock, and 181 using a "dirty interface".
完成一个事务的时间（以毫秒计）在单节点上是：常规锁——1877，显式写入锁——1225，而使用“脏接口”的话是181。
The time (microseconds) to perform the transaction for a single node were 1877 with regular locking, 1225 with an explicit write lock, and 181 using a "dirty interface".
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