幼虫感染斜纹夜蛾核多角体病毒后，在菜株上的分布重心逐渐上移。
When larvae were infected with nuclear polyhedrosis virus, the dispersion of larvae moved to the up part of vegetable gradually.
结果81例患者中出现局部感染2例，导管外移和皮肤过敏各3例，穿刺部位肿胀明显9例。
Results There are 2 cases of local infection, 3 cases of PICC displacement, 3 cases of skin hypersensitivity and 9cases of obvious swelling on the puncture.
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