Pathological changes for the main mast facet osteoarthritis and spinal canal stenosis, and segmental instability, disc degeneration, spondylolisthesis and spinal ligament calcification, and other.
病理改变主要表现为关节突肥大性骨关节炎及椎管狭窄，以及节段性失稳、椎间盘退变、脊柱滑脱及韧带钙化等。
The only thing he spat out was the main-mast, for it stuck in his teeth.
他唯一吐出来的东西是主桅，因为它卡在他的牙齿里了。
Main topsail: Shows the topsail added to the Main Mast.
主上桅帆：显示了主桅上的上桅帆。
I placed my palms against the main-mast, which was of a goodish bigness, and waited, every nerve upon the stretch.
我抱住相当粗的主桅等着，每一根神经都绷紧了。
I placed my palms against the main-mast, which was of a goodish bigness, and waited, every nerve upon the stretch.
我抱住相当粗的主桅等着，每一根神经都绷紧了。
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