collecting lens
(1)聚光镜，集光透镜
(2)透场透镜

• chromo-kisomer
• chromometer
• chromometry
• chromo-optometer
• chromophore
• chromophoric Electrons
• chromophoric group
• chromo-photograph
• chromophotometer
• chromophtography
• chromoscan
• chromoscan densitometer
• chromoscopechromosome
• chromosphere
• chromotron flter
• chromotropism
• chromotropy
• chromotype
• chromsphere
• chromspheric faculae
• chronograph
• chronography
• chrono-interferometer
• chronometer
• chronometery