... 闭式缓冲箱 buffer case; closed 缓冲器套筒 buffer casing 缓冲线圈 buffer coil ...
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closed buffer casing 密闭式缓冲筒
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Before the capsule goes down, though, officials said, metal casing or tubes would have to be lowered into the hole to provide a buffer between the capsule and rock.
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