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2021-8-21 · The cost of breathing gas containing a high fraction of helium is a significant part of the cost of deep diving operations, and can be reduced by recovering the breathing gas for recycling. A reclaim helmet is provided with a return line in the diver's umbilical, and exhaled gas is discharged to this hose through a reclaim regulator, which ensures that gas pressure in the helmet cannot fall ...
Get Price2 天前 · Standard diving dress, also known as hard-hat or copper hat equipment, or heavy gear, is a type of diving suit that was formerly used for all relatively deep underwater work that required more than breath-hold duration, which included marine salvage, civil engineering, pearl shell diving and other commercial diving work, and similar naval diving applications.
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