The source of electrons in an electron microscope is a heated filament.电子显微镜中的电子源,是一加热的灯丝.Characterzation: high quality quartz bulb, biplanar filament which enables increased illumination, uniform color temperature and l...
Cold cathode sensing tubes are more rugged than the glass, hot - filament tubes.冷阴极传感管比玻璃热丝管坚实.The source of electrons in an electron microscope is a heated filament.电子显微镜中的电子源,是一加热的灯丝.Tropomyosin adds structural rigidit...
He achieved better concordance between observation and calculation than had the most elaborate previous scheme.他在观察值与计算值之间获得的一致性,比早先最精心安排所获得的还要好.This question is subsidiary to the previous one.这个问题是辅助上一个问题的。His industry ...