needle detector m 验针机

tocogram m detector 分娩阵痛检测器

vacuum m leak detector 真空检漏器

vacuum m detector 真空检测器

Helium m leak detector 氦检漏仪

lithium m drifted germanium detector 锂漂移锗探测器

M of N detector N中取M检测器

cadmium m sulfide detector 硫化镉探测器

lithium m drifted detector 锂漂移探测器

palladium m barrier leak detector 钯隔层检漏仪