Happen law

英 美
  • 发生规律
  • happen vi.发生;碰巧;出现;偶遇
  • law n.法律;法规;准则;起诉v.起诉;打官司
    1. The biological character of Clostera anastomosis and its epidemic law in Shanghai were studied for the first time.
      摘要对分月扇舟蛾在上海的生活史和发生规律进行了研究。