Update replication-introduction.po

Issue mongodb#293：20141008 15:24

Author: eshujiushiwo

locale/zh/LC_MESSAGES/core/replication-introduction.po

@@ -47,7 +47,7 @@ msgstr ""
 "复制在为数据提供了冗余同时，也提高了数据的可用性。因为在不同的数据库服务器上拥"
 "有多个数据镜像，复制可以有效的防止由于单台服务器故障而导致的数据丢失。复制还能"
 "够帮助我们从硬件故障或是服务瞬断中恢复数据。我们也可以通过增加复制节点来将其用"
-"于容灾备份、报告或是备份。"
+"于灾难恢复、报告或是备份。"
 
 # ec0941baa2d247b9ac65eafcfe8c2d94
 #: ../source/core/replication-introduction.txt:24
@@ -86,12 +86,13 @@ msgid ""
 "become a **secondary**. A **secondary** may become the primary during an "
 "election."
 msgstr ""
-""
+"**投票机**将只做投票使用。当**主节点**降职变为**从节点**的时候，其他的一个"
+"**从节点**将在选举中被推选为主节点。"
 
 # 877fd4026c3b48cd8c0a0778123a921d
 #: ../source/core/replication-introduction.txt:73
 msgid "Asynchronous Replication"
-msgstr ""
+msgstr "异步复制"
 
 # 92d4c3cdcc3c4303a7f08eec12b7eee9
 #: ../source/core/replication-introduction.txt:75
@@ -101,11 +102,14 @@ msgid ""
 "members. However, as a result secondaries may not return the most current "
 "data to clients."
 msgstr ""
+"从节点从主节点上应用操作的过程是异步的。由于从节点是在主节点之后应用操作的，"
+"所以副本集在缺少某些成员的时候仍能继续运行。然而在这种情况下，从节点返回给客户端"
+"的数据可能并不是最新的数据。"
 
 # de0f515c25324c8887c7a251d9e9678e
 #: ../source/core/replication-introduction.txt:85
 msgid "Automatic Failover"
-msgstr ""
+msgstr "自动化故障转移"
 
 # 987e145bdad04430b8c686d3020e5c4b
 #: ../source/core/replication-introduction.txt:87
@@ -115,11 +119,13 @@ msgid ""
 "to become the new primary. The first secondary that receives a majority of "
 "the votes becomes primary."
 msgstr ""
+"当主节点无法与副本集中其他成员进行沟通超过10秒时，副本集将尝试推举另一位成员"
+"成为新的主节点。这时，第一个获得多数投票的从节点将升职为主节点。"
 
 # 82d4e3824a144f58a1eac8754b0757d0
 #: ../source/core/replication-introduction.txt:100
 msgid "Additional Features"
-msgstr ""
+msgstr "其他特征"
 
 # 69e879e73fde4cd0857c46f0bd2322ba
 #: ../source/core/replication-introduction.txt:102
@@ -132,6 +138,9 @@ msgid ""
 "sets also support dedicated members for reporting, disaster recovery, or "
 "backup functions."
 msgstr ""
+"副本集提供了一些选项来支持实际应用时的需求。例如，:doc:`将一个副本集分布在多个数据中心"
+"</core/replica-set-architecture-geographically-distributed>` ，又或是通过设置:data:`~local.system.replset.members[n].priority`"
+"来控制选举的结果。副本集同时也支持将成员用于报告、灾难恢复或是备份功能。"
 
 #: ../source/core/replication-introduction.txt:38
 msgid ""