Pit-props 坑木
Logs for pit-props 坑木
Pit-props ICS 坑木
·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： pitprop sprag
以上来源于: WordNet
Land Girls took on all types of agricultural work while the Women's Timber Corps worked in the forests supplying wood for use in everything from railway sleepers to pit props.
BBC: Land Girls exhibition on display at costume museum
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