The effects of the insecticide to the cocoon silk reeling and animal toxicity tests had been studied also.

 
  • 結果表明該殺蟲(chóng)劑殺蟲(chóng)效果好,廣譜、藥效高、毒性低,對蠶繭解絲質(zhì)量沒(méi)有影響。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan