أجهزة استشعار بالألياف البصرية للوقاية من الأنهيارات الأرضية
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| VIDEOS | |||
| MP4 | 720x408 | 480p | Download |
| MP4 | 512x288 | 380p | Download |
| THUMBNAILS | |||
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JPEG | 60p | Download |
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JPEG | 120p | Download |
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JPEG | 180p | Download |
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JPEG | 240p | Download |
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JPEG | 360p | Download |
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JPEG | 480p | Download |
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JPEG | 720p | Download |
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JPEG | 1080p | Download |
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