一般来讲，SPC工具有广义和狭义之分。SPC的概念广义的SPC包括传统的7大质量工具：1.Histogram 柱状图2. Check sheet 检查表3. Pareto chart 柏拉图4. Cause-and-effect diagram 鱼骨图5. Process flo
摘自：AUSA(2018)PROFILE OF THE UNITED STATES ARMY(44/122)U.S. ARMY RANK INSIGNIA(WITH ESTIMATED PROMOTION TIMELINES)参见上图。美军：陆军军衔标志(U.S.
