Then based costing system operation principle of the general programming designed cigarette factory equipment maintenance procedures for the implementation of operating cost accounting.

接着依据作业成本法系统操作的一般程序设计原则，设计了卷烟厂设备维修实施作业成本核算的程序。

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After General Electric, DuPont, General Motors being elected in the U. s. a since 20 years of last century, this approach soon became the standard operating procedures for large-scale enterprises.

这一方法自从上个世纪20年代在美国的通用电气、杜邦、通用汽车公司产生之后，很快就成了大型企业的标准作业程序。

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The staff in the control tower have created new operating procedures to allow the airport to remain open to general aviation when drones are not taking off or landing.

ECONOMIST: A small Welsh airport has become an unlikely tech cluster