diff --git a/postgresql/doc/src/sgml/ref/alter_tablespace.sgml b/postgresql/doc/src/sgml/ref/alter_tablespace.sgml
index d3b91ad7..9a81b3dd 100644
--- a/postgresql/doc/src/sgml/ref/alter_tablespace.sgml
+++ b/postgresql/doc/src/sgml/ref/alter_tablespace.sgml
@@ -4,6 +4,10 @@ PostgreSQL documentation
 -->
 
 <refentry id="SQL-ALTERTABLESPACE">
+ <indexterm zone="sql-altertablespace">
+  <primary>ALTER TABLESPACE</primary>
+ </indexterm>
+
  <refmeta>
   <refentrytitle>ALTER TABLESPACE</refentrytitle>
   <manvolnum>7</manvolnum>
@@ -22,10 +26,6 @@ PostgreSQL documentation
 
  </refnamediv>
 
- <indexterm zone="sql-altertablespace">
-  <primary>ALTER TABLESPACE</primary>
- </indexterm>
-
  <refsynopsisdiv>
 <synopsis>
 ALTER TABLESPACE <replaceable>name</replaceable> RENAME TO <replaceable>new_name</replaceable>
@@ -43,26 +43,27 @@ ALTER TABLESPACE <replaceable>name</replaceable> RESET ( <replaceable class="PAR
 
   <!--
 <para>
-   <command>ALTER TABLESPACE</command> changes the definition of
+   <command>ALTER TABLESPACE</command> can be used to change the definition of
    a tablespace.
   </para>
 -->
 <para>
-<command>ALTER TABLESPACE</command>改变一个表空间的定义。 
+<command>ALTER TABLESPACE</command>可以用来改变一个表空间的定义。 
 </para>
 
   <!--
 <para>
-   You must own the tablespace to use <command>ALTER TABLESPACE</>.
+   You must own the tablespace to change the definition of a tablespace.
    To alter the owner, you must also be a direct or indirect member of the new
    owning role.
    (Note that superusers have these privileges automatically.)
   </para>
 -->
 <para>
-要使用<command>ALTER TABLESPACE</>，你必须是该表空间的所有者。
+要改变表空间的定义，你必须是该表空间的所有者。
 要修改所有者，你还必须是新的所有角色的直接或间接成员。不过，超级用户自动获得这些权限。 
 </para>
+
  </refsect1>
 
  <refsect1>
@@ -141,6 +142,7 @@ ALTER TABLESPACE <replaceable>name</replaceable> RESET ( <replaceable class="PAR
 </para>
     </listitem>
    </varlistentry>
+
   </variablelist>
  </refsect1>