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与"objective lens"相近的词条

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• objective for dark-ground observation
• objective for differential interference contrast
• objective grating
• objective holde
• objective improvement
• objective lens
• objective lens adjustment
• objective lens for fiberscope
• objective lens for image tube
• objective light
• objective lights
• objective magnification
• objective method
• objective micrometer
• objective noise-meter
• objective noisemeter

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