計數型數據性能曲線介紹(pdf 19頁)

計數型數據性能曲線介紹內容提要：
什麼是“a”值？
The “a” value is the number times a part is accepted.
“a”值是一個零件被接受的次數。
The smallest (largest) part must have an “a” value = 0.
This means that the part was never accepted by the gage.
最小（最大）零件的“a”值必須是0。
這意味著該零件永遠不會被量具接受。
The parts from the center of the distribution should have an
“a” value = 20. This means that this part was always
accepted by the gage.
位於分布中心的零件的“a”值應該等於20。這意味著該零件
一直會被量具接受。
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