名词
中文翻译：初步注射
同义词：
['preparatory infusion', 'preliminary injection']
例句：
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1. The doctoradministered a preliminary infusion of medication to the patient.
医生给病人进行了一次初步的药物治疗。
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2. Before surgery, patients typically receive a preliminary infusion of saline solution.
在手术前，患者通常会接受一次盐水溶液的初步注射。
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3. During the initial stages of recovery, the patient received a preliminary infusion of antibiotics.
在康复的初期阶段，患者接受了一次抗生素的初步注射。