... lapnisfibre拉普尼斯韧皮纤维 lappas拉珀斯方平色条棉布 lapper研磨机 ...
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lappas s 拉珀斯方平色条棉布
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The novelty Dr Lappas envisages is to change the angle of the sail when the satellite has become defunct.
ECONOMIST: A satellite that tidies up after itself
Dr Lappas's satellite-removal system employs a solar sail.
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