短語詞組短語chemical defoliation 葯劑脫葉;化學(xué)脫葉defoliation quantity 葉損失defoliation efficiency 脫葉傚能simulated defoliation 模擬放牧採食homogeneous defoliation 均勻採摘untimely defoliation 提前落葉complete defoliation 完全脫葉forest defoliation 森林落葉Defoliation Themselves 啃食自己 返回 defoliation