他不需要成堆的原材料,不需要精密仪器,不需要有人效犬马之劳。
He needs no bulky pile of raw material , no elaborate apparatus , no service of men or animals .
i/m2对中华按蚊和嗜人按蚊的毒效仍达100%。
I / m 2 , were still 100 % for Anopheles anthropophagus and An . sinensis .