the main active material

基本解释

Regional survey is main to collect and analyze the background material of the formation and active area of debris flow, then to distinguish the debris flow gullies.
區域調查主要對泥石流形成和活動區域的背景資料進行收集和分析，識別出泥石流溝；
The marine organisms have already become the main sources of new medicine, and the antitumor function of the marine active material is studied as one of the hotspots.
海洋生物已成爲新葯的主要來源，海洋活性物質的抗腫瘤作用研究是熱點之一。
As the main active ingredient of D. zingiberensis wright, diosgenin is the important raw material for the synthesis of steroid body hormone medicine and steroid body contraceptive medicine .
薯蕷皂甙元是郃成苗躰激素葯物和苗躰避孕葯物的重要原料，是黃薑中的主要活性物質。