The paper has also summarized the general techniquesofhandling mine water resources, which is of guiding significance to mine water resources in China's mining area.
概述了矿井水资源化处理的一般工艺,对我国矿区水资源化利用具有指导意义。
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In essence, deferreds are a generalization of scheduled callbacks, but allow techniques such as chaining dependent callbacks and handling error conditions in these chains.
Nowadays, Python users have a healthy choice of DOM, SAX, and expat techniques for handling XML (XML developers who have used other programming languages will recognize all of these).