Closed Circuit Rebreather Diver 全封式循环呼吸气潜水
semi-closed circuit rebreather 半闭式回路再呼吸器
closed circuit rebreather
闭路换气器
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The scientists had to use sophisticated closed-circuit rebreather gear to avoid decompression problems.
BBC: Pacific dives recover novel fish
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