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...
舌尖前送气塞擦音. 是与z相对应的 关气音.An aspiratded blade - alveolar affricate. It is an aspirated equivalent of [ z ] .舌面送气清塞擦音.An aspirted voiceless palatal affricate.j舌面不送气清塞擦音.This is an unaspirated voiceless palatal affricate....