“arch blocks”的概念、定义、翻译、参考文献-科学参考

单词	arch blocks
释义	arch blocks [`ärch ´bläks] ^{MINING ENGINEERING} Blocks applied to the wooden voussoirs used in framing a timber support for the roof when driving a tunnel.
随便看	copulatory bursa copulatory organ copulatory spicule copy copyboard copy deoxyribonucleic acid copy error copying program copy protection coquimbite coquina coquinoid Coraciidae Coraciiformes coracite coracoid coracoid ligament coracoid process coral coral head coral knoll Corallanidae Corallidae Corallimorpharia Corallinaceae

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