Design of Bacteria Bottle Clamping Elements Based on Regression Models

Table 2

Factors and levels of the Box–Behnken test.

Factors	Code	Levels of codes
		−1	0	1
Inner arc surface area	A ()	2121	3958	4948
Displacement	B (mm)	1.4	1.5	1.6
Thickness	C (mm)	2	3	4