英语翻译The quality control (QC) function has traditionlly been

英语翻译
The quality control (QC) function has traditionlly been performed using manual inspection methods and statistical procedures.Manual inspection is generally a time-consuming procedure which involves precise,yet monotonous work.If often requires that parts be removed from the vicinity of the protection machines to a separate inspection area.This cause delays and often constitutes a bottleneck in the manufacturing schedule.
Inherent in the use of statistical sampling procedures is acknowledgment of the risk that some defective parts will slip through.【1】Indeed,statistical quality control attempts to guarantee that a certain expected or average fraction defect rate will be generated during the production/inspection process.The nature of traditional statistical QC procedures is that something less than 100% good quality must be tolerated.
The is another aspect of the traditional QC inspection process which detracts from its usefulness.It is often performed after the fact.The measurements are taken and the quality is determined after the part are already made.If the part are defective they must be scrapped or reworked at a cost which is often greater than their original cost to manufacture.

质量把关功能通过使用传统的人工检测方法和统计分析程序一直沿用...
人工检测通常是一种省时间,精确度高,但又比较单调的工作.
如果这些部件需要从运行保护机器中拆除拿到附近的独立分开的检测区域,这样就会引起延误同时也在安排运行时间上造成困难.
原有的样品统计分析程序的使用增加了一些故障部件被快速通过而不被发现的风险.
实际上,统计质量控制目的在于确保在生产或检测过程中能够达到预计的平均零件缺陷率...
传统的统计质量把关程序只是能够使得合格率小于100%的产品可以接受.它的另一方面通过在减损利益情况是在事后公布结果.
在部件制造完成之后,通过一些措施来决定产品的质量...
当某些零部件检测不合格时,应立即作废或者返工,这样对制造商来说就会使得比原先最初的造价要高出很多.
我就按照个人经验翻译的,可能措辞不是很准确,请见谅!.