方法：采用沉降法破坏供试液的胶体并去除其不溶性颗粒，以目标菌进行回收率验证试验。
Methods: Usded sedimentation, undermined the colloidal system of sample solution, removal of the insoluble particles, and verified the recovery of the target bacteria.
方法：采用沉降法破坏供试液的胶体并去除其不溶性颗粒，以目标菌进行回收率验证试验。
Methods: Usded sedimentation, undermined the colloidal system of sample solution, removal of the insoluble particles, and verified the recovery of the target bacteria.
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