A. 64 B. 63 C. 32 D. 16
A. 碘量法 B. 酸性染料比色法 C. 双相滴定法 D. 酸碱滴定法 E. 非水溶液滴定法
A. the clearance of the main bearing B. the diameter of main bearing C. the hardness of main bearing D. the tolerance of main bearing