ridge-pole(桁), 此释义来源于网络辞典。
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ridge pole 天遮杆 ; 脊柱 ; 天幕纵梁 ; 屋脊梁
ridge pole west bank 脊柱
post under ridge pole 脊下支柱
·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： ridge ridgepole rooftree
以上来源于: WordNet
N a timber laid along the ridge of a roof, to which the upper ends of the rafters are attached 栋梁
Primordial germ cells came from pole cells and moved in two masses to the laterodorsal abdomen of embryo, and then were enveloped by mesoderm to form germinal ridge.
原始生殖细胞来自极细胞，分两团移至胚胎腹部侧背面，被中胚层细胞包裹，形成生殖脊。
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