The control effect of DDVP . carbaryl and cypermethrin smoke agents were 95.85 % 31.51 % and 97.66 % respectively.西维因烟剂防治效果为 31.51%,氯氰菊酯烟剂防治效果为97.68%....
to commit suicide自杀He brooded on whether she should commIt'suicide.他想她是不是死于自杀.There are unconfirmed reports he tried to commit suicide.有未经证实的报道说他曾企图自杀。...
细胞壁上有不规则的增厚, 增厚的部分通常在几个细胞 邻接处 的角隅上特别明显.The cell walls are irregularly thickened and pectin , the thickening giving distinct the cells in cross - section....