On an engine test bed, two selected exhaust purifiers with DOC type experienced comparison emission tests; the results validated the sizable effects of the outer purifier means.
在发动机试验台架上，选择了两种DOC型尾气净化器，进行了排放比对试验，验证了机外净化的效果。
Using the DDL shown in Listing 2, you can create a new table of name "employee", containing only two columns: id of type INTEGER and doc of type XML.
可以使用清单2所示的DDL创建一个名为“employee”的新表，其中只包含两列：INTEGER类型的id列和xml类型的doc列。
The file import functionality was originally designed to import .doc files, and to store them later on with a different extension (depending on the document type that you select).
文件引入功能最初被设计成引入 .doc文件，然后用不同的扩展方式（取决于您选择的文件类型）来存储它们。
The file import functionality was originally designed to import .doc files, and to store them later on with a different extension (depending on the document type that you select).
文件引入功能最初被设计成引入 .doc文件，然后用不同的扩展方式（取决于您选择的文件类型）来存储它们。
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