基本解釋化學(xué)脫葉劑英漢例句雙語例句Defoliant: Chemical dust or spray applied to plants to cause their leaves to drop off prematurely.落葉劑： 落葉劑是一種化學(xué)粉劑或噴灑劑，施于植物以使樹葉提早掉落。chemical defoliant更多例句專業(yè)釋義農(nóng)業(yè)科學(xué)化學(xué)脫葉劑