可是，大众服药与儿童免疫之间存有一个重要差异。
But mass drug administration differs from childhood immunization in one important way.
但是两者之间一个重要差异是，在DB 2中，模式名称不一定与一个用户id相匹配。
An important difference, however, is that in DB2, a schema name does not have to match to a user id.
在清单1与Axis2和Metro示例使用的WSDL之间有一个重要的差异。
There's one significant difference between the Listing 1 WSDL and that used for UsernameToken in the Axis2 and Metro examples.
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