- illuminations actually measured
- 照度: illuminance; illuminancy; il ...
- 实测: actual measurement; observation
- 照度: [物理学] illuminance; illuminancy; illumination; intensity of illumination; laminous flux density◇照度测定 illumination photometry; 照度分配图 isolux diagram; 照度计 illuminometer; luxmeter; lux gauge; lightmeter
- 航测照片: aerial photograph
- 航测照相机: air-survey camera
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