结果随疲劳程度加重和疲劳时间延长，肌肉收缩形式从单收缩向不完全强直收缩和完全强直收缩过渡；
Results: With the fatigue becoming more serious or fatigue period becoming longer, the pattern of contraction became incomplete tetanus and complete tetanus progressively from single twitch.
由于槽狭窄，收缩区阻止导管从阻塞段或流动段向另一段移动。
Because of this narrow slot, the pinch zone resists movement of the tube from either the occluding or the flow sections into another section.
由于槽狭窄，收缩区阻止导管从阻塞段或流动段向另一段移动。
Because of this narrow slot, the pinch zone resists movement of the tube from either the occluding or the flow sections into another section.
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