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- The selective toxicity decreased following the increase of A.gossypii resistance. 随棉蚜抗药性提高，各药剂选择性降低。
- Lethal and sublethal effects of insecticides on parasitoids, selective toxicity of insecticides between host and parasitoid, and parasitoid resistance to insecticide are reviewed. 本文综述了有关杀虫剂对拟寄生昆虫影响的研究结果，包括致死、亚致死效应，杀虫剂在寄主一拟寄生昆虫间的选择毒性，拟寄生昆虫对杀虫剂的抗性等。
- Cyfluthrin and cypermethrin among 7 pyrethroid insecticides possess the highest selective toxicity for the aphid to the ladybird, the STRs are 55.16 and 30.00, respectively. 7种菊酯类杀虫剂中以氟氯氰菊酯和氯氰菊酯的选择性最高，其选择性毒力比值分别为55.;16和30
- The selective toxicity of DPH on CGN is likely due to its ability to induce apoptosis of CGN, it is a process involved activation of c-Jun and suppression of the activity of p44/42. DPH对体外培养的CGN的神经毒性源于其介导的CGN的凋亡,在此过程中c-Jun的表达及活性被上调,p44/42活性被抑制。
- The results of biochemical analysis indicated that the difference of the activity of carboxylesterase and esterase isozymes in the larval midguts were the main mechanism of this selective toxicity. 生化分析结果进一步指出,昆虫中肠羧酸酯酶的活性及酯酶同功酶的差异是这种选择麻醉作用的重要机制。
- The selective toxicity of 15 insecticides between Aphis citricola von der Goot and Coccinella septempunctala L. was investigated with a topical application method recommended by FAO. 摘要采用FAO推荐的点滴法，测定了15种常用杀虫剂对苹果黄蚜及其天敌七星瓢虫幼虫的毒力，比较了药剂在二者之间的毒力选择性。
- Many microorganisms synthesize and excrete compounds which are selectively toxic to other microorganisms. 许多微生物能合成并分泌一些对其它微生物具选择性毒力的化合物。
- The treatment of disease using chemical agents or drugs that are selectively toxic to the causative agent of the disease,such as a virus,bacterium,or other microorganism. 化学疗法使用对导致疾病的因素如病毒、细菌或其它微生物具有危害性的化学试剂或药品来治疗疾病的方法
- The treatment of disease using chemical agents or drugs that are selectively toxic to the causative agent of the disease, such as a virus, bacterium, or other microorganism. 化学疗法使用对导致疾病的因素如病毒、细菌或其它微生物具有危害性的化学试剂或药品来治疗疾病的方法
- The factory had been sending out toxic fumes. 这家工厂一直在排放有毒的废气。
- Studies on selective toxicity of different kinds of insecticide to nematodes 不同种类杀虫剂对线虫的选择毒性研究
- She helped to select a dress for Ruth. 她帮着给露丝选了一件衣裳。
- Beware how you handle the toxic chemical. 小心处理有毒的化学药品。
- Review on Mechanism of Action and Selective Toxicity to New Insecticides 新型杀虫剂的作用机制和选择毒性
- She is selective in the dresses she wears. 她对于自己穿的衣服精挑细选。
- A toxic chemical or other substance. 有毒的化学品或其它物质
- She only stays at select hotels. 她只住一流旅馆。
- The degree to which a substance is toxic. 毒效一种物质毒性所达到的程度
- Can student willfully select the course? 学生可以随意选择课程吗？
- A select group were invited to the wedding reception. 一群经过挑选的人士被邀请参加婚宴。
