采用上述结构，固紧装置在气体的缓冲作用下，的固定性能更好，不易发生松动，手术效果好。
Due to the adoption of the structure, the fastening device has better fixity, not easy looseness and good operation effect under the action of air cushion.
采用上述结构，固紧装置在气体的缓冲作用下，的固定性能更好，不易发生松动，手术效果好。
Due to the adoption of the structure, the fastening device has better fixity, not easy looseness and good operation effect under the action of air cushion.
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