Objective: To evaluate the ct diagnosis in herniated diaphragm and direction of clinical operation.
目的：探讨膈疝的CT诊断及其临床手术指导价值。
Objective To observe the effect of diaphragm nerve block combined with injection of meperidine in Neiguan point in relieving the stretch reaction during the course of gallbladder operation.
目的观察膈神经阻滞联合内关穴注射哌替啶预防胆囊手术牵拉反应的效果。
Described the clutch diaphragm spring clutch, hydraulic remote operation, pneumatic servo booster.
膜片弹簧离合器，液压远距离操作，带气压伺服助力器。
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