Conclusions Pump implementation chemotherapy is superior to peripheral venous chemotherapy in preventing postoperative local recurrence and hepatic metastasis in patients with rectal carcinoma.
结论置泵灌注化疗在预防直肠癌术后局部复发和肝脏转移的治疗效果优于外周静脉全身化疗。
When the pump sets lose electricity during operation, for the sake of preventing pipe failure by negative pressure, installed a surge shaft at the head of the pipe line.
当泵组运行失电时，为防止负压对管道的破坏，在管道首都设置了调压井。
The difference often lies in the subtleties: economy of movement, preventing the pump, and maximizing recovery while climbing.
差距往往体现在细微之处：动作的经济性，防止充血，以及尽可能的促进攀登过程中的恢复效果。
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