名词
中文翻译：肾的直管
同义词：
['renal tubule', 'renal pelvis例句：1. The kidney is responsible for filtering blood and removing waste products.（肾脏负责过滤血液并清除废物。）']
例句：
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1. The kidney is responsible for filtering blood and removing waste products.
肾脏负责过滤血液并清除废物。
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2. The patient's urine output has significantly decreased since the operation.
手术后患者的尿量显著减少。
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3. The pathologist examined the tissue samples under a microscope to determine the cause of the kidney disease.
病理学家在显微镜下检查了组织样本，以确定肾脏疾病的成因。