Instruction includes: specialized camera and equipment operation and maintenance. applications to commercial and industrial needs. and photography business operations.
课程主要包括：专业摄像、设备操作和维护、应用商业和工业和摄影业务。
The non natural losses introduced in the paper mainly result from the management, Equipment management, regulation and rules are not well, operation doesn't follow the instruction.
文中着重介绍非自然损耗，主要是由于设备管理不善，规章制度不健全，操作人员责任心不强及不按操作规程作业等引起的。
This includes instruction in the operation and maintenance of mechanical. electronic. and digital graphic. printing. and finishing equipment; and related processes.
主要课程包括：机械的操作和维护、电子、数码图像、印刷以及整理设备及相关流程。
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