名词
中文翻译：口腔内追踪剂
同义词：
['intraoral agent', 'intraoral tracer agent']
例句：
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1.This drug is used to treat oral cancer by delivering a radioactive substance directly into the tumor.
这种药物通过直接将放射性物质输送到肿瘤中，用于治疗口腔癌。
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2.The study used intraoral tracers to track the movement of food in the mouth.
该研究使用口腔内追踪剂来追踪食物在口中的运动。
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3. The researcher injected a small amount of this tracer into the patient's bloodstream to monitor its distribution throughout the body.
研究者向患者血液中注射了少量这种追踪剂，以监测其在体内的分布情况。