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美国政府科技报告
>Study of ground-based and space vehicle infra- red instrumentation for thermal photography of the moon, including experimental programs at selected observatories semiannual status report, 1 jan. - 30 jun. 1967
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Study of ground-based and space vehicle infra- red instrumentation for thermal photography of the moon, including experimental programs at selected observatories semiannual status report, 1 jan. - 30 jun. 1967