相反，“listener”或“handler”类负责提供响应文档流中各种事件的一组方法。
Instead, a "listener" or "handler" class is responsible for providing a set of methods that respond to various events in the document stream.
该磋商小组在世界各地建立了中心，它们的工作人员是来自各种文化的研究人员。该小组负责改良作物品种及改进耕作方法，这些品种和方法对饥饿产生了深远的影响。
With centres around the world staffed with researchers from many cultures, the Group has been responsible for improved crop varieties and farming methods that have had a profound impact on hunger.
负责实验室内部各种检验分析方法的验证工作的实施，对生产工艺、设备、生产环境等验证工作提供检验支持。
Responsible for implementing validation work about all kinds of analysis method within Lab, supply the test support on the other validation work such as process, equipment, environment and etc.
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