the main active material

常见例句

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.
区域调查主要对泥石流形成和活动区域的背景资料进行收集和分析，识别出泥石流沟；
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.
海洋生物已成为新药的主要来源，海洋活性物质的抗肿瘤作用研究是热点之一。
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 .
薯蓣皂甙元是合成苗体激素药物和苗体避孕药物的重要原料，是黄姜中的主要活性物质。