... 酯类低聚物：oligoesters 趾状构造：toe structure 趾积层：toeset ...
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toe slab structure 趾板结构
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Scour: removal of underwater material by waves or currents, especially at the toe of a shore protection structure.
UNESCO: L O S S A R Y
Toe protection: material, usually large boulders, placed at the base of a sea defence structure like a seawall to prevent wave scour.
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