Double section gas occurrence boiler gasification efficiency and thermal efficiency than single sections of furnace are high, there is two gas exports, and output of gas calorific value of different.

双段煤气发生炉气化效率和热效率均比单段式炉高，有上下两个煤气出口，可输出不同热值的煤气。

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See the section on Double-booting in the DB2 Help site documentation for important information on this subject.

关于此话题的重要信息，请参阅DB 2 HELP站点文档中关于Double - booting的小节。

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Double-click on the arrow next to the Types section schema. This will open the schema editor.

双击 Types 部分 Schema 旁边的箭头，这将会打开 Schema 编辑器。

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On the double helix that comprised the Os in Google, a small section of a strand crossed another at the wrong spot.

WSJ: A Holiday Card From Google