. Deep ocean cable burial concept development. Cables, Submarine; Marine engineering; Civil engineering. L^^. /?^3^ (a) Upmilling. (b) Climbmilling. A. Chain Bucket Trencher.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Rockwell, P. K; Naval Construction Battalion Center (Port Hueneme, Calif. ). Civil Engineering Laboratory. Port Hueneme, Calif. : Naval Construction Batallion Center
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