“foot block”的概念、定义、翻译、参考文献-科学参考

单词	foot block
释义	foot block [`fu̇t ´bläk] ^ENGINEERING Flat pieces of wood placed under props in tunneling to give a broad base and thus prevent the superincumbent weight from pressing the props down.
随便看	caulome causal boundary causal curve causal future causalgia causality causality condition causally simple causal past causal system caustic caustic alcohol caustic barley caustic cracking caustic dip caustic embrittlement caustic flooding causticity causticization caustic lime caustic potash caustic soda caustic treater caustic wash caustobiolith

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