常見例句雙語例句Objective To observe the efficacy of Blattella germanica control with gel bait and poison powder.目的觀察套餐法控制酒店德國小蠊的效果。Objective Comparing study on the killing effect of killing cockroach chalk against Blattella germanica. by two examining way in laboratory.目的實(shí)驗(yàn)室內(nèi)比較研究了兩種方法測試殺蟑螂筆對(duì)德國小蠊的殺滅效果。Objective:To study on the toxic effect and palatablity of the Insect Growth Regulation baits against Blattella germanica in the laboratory.目的：觀察昆蟲生長調(diào)節(jié)餌劑對(duì)德國小蠊的實(shí)驗(yàn)室評(píng)價(jià)效果。 返回 blattella germanica