基本解释[化学]胡椒英汉例句双语例句Pipeline in Piper nigrum Linn were identified by TLC with clear and reproducible spot, the content of pipeline in extractor was determined by HPLC.本研究采用薄层色谱法（TLC法）对胡椒提取物中的有效成分胡椒碱进行鉴别分析，结果斑点清晰、重现性较好。piper nigrum linn更多例句专业释义化学胡椒