A.0.05~0.14mm B.0.15~0.25mm C.0.26~0.35mm D.0.36~0.45mm
A.轉速 B.爆震 C.正時 D.凸輪軸
A.嚴格的動平衡 B.嚴格的靜平衡 C.嚴格的測試 D.嚴格的檢修